1 # Copyright (c) 1998-2004 Sendmail, Inc. and its suppliers.
3 # Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 # The Regents of the University of California. All rights reserved.
7 # By using this file, you agree to the terms and conditions set
8 # forth in the LICENSE file which can be found at the top level of
9 # the sendmail distribution.
12 # $Id: README,v 8.392 2009/04/10 17:49:19 gshapiro Exp $
15 This directory contains the source files for sendmail(TM).
17 *******************************************************************
18 !! Read sendmail/SECURITY for important installation information !!
19 *******************************************************************
21 **********************************************************
22 ** Read below for more details on building sendmail. **
23 **********************************************************
25 **************************************************************************
26 ** IMPORTANT: Read the appropriate paragraphs in the section on **
27 ** ``Operating System and Compile Quirks''. **
28 **************************************************************************
30 For detailed instructions, please read the document ../doc/op/op.me:
32 cd ../doc/op ; make op.ps op.txt
34 Sendmail is a trademark of Sendmail, Inc.
35 US Patent Numbers 6865671, 6986037.
42 By far, the easiest way to compile sendmail is to use the "Build"
47 This uses the "uname" command to figure out what architecture you are
48 on and creates a proper Makefile accordingly. It also creates a
49 subdirectory per object format, so that multiarchitecture support is
50 easy. In general this should be all you need. IRIX 6.x users should
51 read the note below in the OPERATING SYSTEM AND COMPILE QUIRKS section.
53 If you need to look at other include or library directories, use the
54 -I or -L flags on the command line, e.g.,
56 sh ./Build -I/usr/sww/include -L/usr/sww/lib
58 It's also possible to create local site configuration in the file
59 site.config.m4 (or another file settable with the -f flag). This
60 file contains M4 definitions for various compilation values; the
63 confMAPDEF -D flags to specify database types to be included
65 confENVDEF -D flags to specify other environment information
66 confINCDIRS -I flags for finding include files during compilation
67 confLIBDIRS -L flags for finding libraries during linking
68 confLIBS -l flags for selecting libraries during linking
69 confLDOPTS other ld(1) linker options
71 Others can be found by examining Makefile.m4. Please read
72 ../devtools/README for more information about the site.config.m4
75 You can recompile from scratch using the -c flag with the Build
76 command. This removes the existing compilation directory for the
77 current platform and builds a new one. The -c flag must also
78 be used if any site.*.m4 file in devtools/Site/ is changed.
80 Porting to a new Unix-based system should be a matter of creating
81 an appropriate configuration file in the devtools/OS/ directory.
84 +----------------------+
85 | DATABASE DEFINITIONS |
86 +----------------------+
88 There are several database formats that can be used for the alias files
89 and for general maps. When used for alias files they interact in an
90 attempt to be backward compatible.
94 NEWDB The new Berkeley DB package. Some systems (e.g., BSD/OS and
95 Digital UNIX 4.0) have some version of this package
96 pre-installed. If your system does not have Berkeley DB
97 pre-installed, or the version installed is not version 2.0
98 or greater (e.g., is Berkeley DB 1.85 or 1.86), get the
99 current version from http://www.sleepycat.com/. DO NOT
100 use a version from any of the University of California,
101 Berkeley "Net" or other distributions. If you are still
102 running BSD/386 1.x, you will need to upgrade the included
103 Berkeley DB library to a current version. NEWDB is included
104 automatically if the Build script can find a library named
106 See also OPERATING SYSTEM AND COMPILE QUIRKS about Berkeley
107 DB versions, e.g., DB 4.1.x.
108 NDBM The older NDBM implementation -- the very old V7 DBM
109 implementation is no longer supported.
110 NIS Network Information Services. To use this you must have
111 NIS support on your system.
112 NISPLUS NIS+ (the revised NIS released with Solaris 2). You must
113 have NIS+ support on your system to use this flag.
114 HESIOD Support for Hesiod (from the DEC/Athena distribution). You
115 must already have Hesiod support on your system for this to
116 work. You may be able to get this to work with the MIT/Athena
117 version of Hesiod, but that's likely to be a lot of work.
118 BIND 8.X also includes Hesiod support.
119 LDAPMAP Lightweight Directory Access Protocol support. You will
120 have to install the UMich or OpenLDAP
121 (http://www.openldap.org/) ldap and lber libraries to use
123 MAP_REGEX Regular Expression support. You will need to use an
124 operating system which comes with the POSIX regex()
125 routines or install a regexp library such as libregex from
126 the Free Software Foundation.
127 DNSMAP DNS map support. Requires NAMED_BIND.
128 PH_MAP PH map support. You will need the libphclient library from
129 the nph package (http://www-dev.cites.uiuc.edu/ph/nph/).
130 MAP_NSD nsd map support (IRIX 6.5 and later).
131 SOCKETMAP Support for a trivial query protocol over UNIX domain or TCP
134 >>> NOTE WELL for NEWDB support: If you want to get ndbm support, for
135 >>> Berkeley DB versions under 2.0, it is CRITICAL that you remove
136 >>> ndbm.o from libdb.a before you install it and DO NOT install ndbm.h;
137 >>> for Berkeley DB versions 2.0 through 2.3.14, remove dbm.o from libdb.a
138 >>> before you install it. If you don't delete these, there is absolutely
139 >>> no point to including -DNDBM, since it will just get you another
140 >>> (inferior) API to the same format database. These files OVERRIDE
141 >>> calls to ndbm routines -- in particular, if you leave ndbm.h in,
142 >>> you can find yourself using the new db package even if you don't
143 >>> define NEWDB. Berkeley DB versions later than 2.3.14 do not need
144 >>> to be modified. Please also consult the README in the top level
145 >>> directory of the sendmail distribution for other important information.
147 >>> Further note: DO NOT remove your existing /usr/include/ndbm.h --
148 >>> you need that one. But do not install an updated ndbm.h in
149 >>> /usr/include, /usr/local/include, or anywhere else.
151 If NEWDB and NDBM are defined (but not NIS), then sendmail will read
152 NDBM format alias files, but the next time a newaliases is run the
153 format will be converted to NEWDB; that format will be used forever
154 more. This is intended as a transition feature.
156 If NEWDB, NDBM, and NIS are all defined and the name of the file includes
157 the string "/yp/", sendmail will rebuild BOTH the NEWDB and NDBM format
158 alias files. However, it will only read the NEWDB file; the NDBM format
159 file is used only by the NIS subsystem. This is needed because the NIS
160 maps on an NIS server are built directly from the NDBM files.
162 If NDBM and NIS are defined (regardless of the definition of NEWDB),
163 and the filename includes the string "/yp/", sendmail adds the special
164 tokens "YP_LAST_MODIFIED" and "YP_MASTER_NAME", both of which are
165 required if the NDBM file is to be used as an NIS map.
167 All of these flags are normally defined in a confMAPDEF setting in your
170 If you define NEWDB or HESIOD you get the User Database (USERDB)
171 automatically. Generally you do want to have NEWDB for it to do
172 anything interesting. See above for getting the Berkeley DB
173 package (i.e., NEWDB). There is no separate "user database"
174 package -- don't bother searching for it on the net.
176 Hesiod and LDAP require libraries that may not be installed with your
177 system. These are outside of my ability to provide support. See the
178 "Quirks" section for more information.
180 The regex map can be used to see if an address matches a certain regular
181 expression. For example, all-numerics local parts are common spam
182 addresses, so "^[0-9]+$" would match this. By using such a map in a
183 check_* rule-set, you can block a certain range of addresses that would
184 otherwise be considered valid.
186 The socket map uses a simple request/reply protocol over TCP or
187 UNIX domain sockets to query an external server. Both requests and
188 replies are text based and encoded as netstrings. The socket map
189 uses the same syntax as milters the specify the remote endpoint,
192 Ksocket mySocketMap inet:12345@127.0.0.1
194 See doc/op/op.me for details.
200 Wherever possible, I try to make sendmail pull in the correct
201 compilation options needed to compile on various environments based on
202 automatically defined symbols. Some machines don't seem to have useful
203 symbols available, requiring that a compilation flag be defined in
204 the Makefile; see the devtools/OS subdirectory for the supported
207 If you are a system to which sendmail has already been ported you
208 should not have to touch the following symbols. But if you are porting,
209 you may have to tweak the following compilation flags in conf.h in order
210 to get it to compile and link properly:
212 SYSTEM5 Adjust for System V (not necessarily Release 4).
213 SYS5SIGNALS Use System V signal semantics -- the signal handler
214 is automatically dropped when the signal is caught.
215 If this is not set, use POSIX/BSD semantics, where the
216 signal handler stays in force until an exec or an
217 explicit delete. Implied by SYSTEM5.
218 SYS5SETPGRP Use System V setpgrp() semantics. Implied by SYSTEM5.
219 HASNICE Define this to zero if you lack the nice(2) system call.
220 HASRRESVPORT Define this to zero if you lack the rresvport(3) system call.
221 HASFCHMOD Define this to one if you have the fchmod(2) system call.
222 This improves security.
223 HASFCHOWN Define this to one if you have the fchown(2) system call.
224 This is required for the TrustedUser option if sendmail
225 must rebuild an (alias) map.
226 HASFLOCK Set this if you prefer to use the flock(2) system call
227 rather than using fcntl-based locking. Fcntl locking
228 has some semantic gotchas, but many vendor systems
229 also interface it to lockd(8) to do NFS-style locking.
230 Unfortunately, may vendors implementations of fcntl locking
231 is just plain broken (e.g., locks are never released,
232 causing your sendmail to deadlock; when the kernel runs
233 out of locks your system crashes). For this reason, I
234 recommend always defining this unless you are absolutely
235 certain that your fcntl locking implementation really works.
236 HASUNAME Set if you have the "uname" system call. Implied by
238 HASUNSETENV Define this if your system library has the "unsetenv"
240 HASSETSID Define this if you have the setsid(2) system call. This
241 is implied if your system appears to be POSIX compliant.
242 HASINITGROUPS Define this if you have the initgroups(3) routine.
243 HASSETVBUF Define this if you have the setvbuf(3) library call.
244 If you don't, setlinebuf will be used instead. This
245 defaults on if your compiler defines __STDC__.
246 HASSETREUID Define this if you have setreuid(2) ***AND*** root can
247 use setreuid to change to an arbitrary user. This second
248 condition is not satisfied on AIX 3.x. You may find that
249 your system has setresuid(2), (for example, on HP-UX) in
250 which case you will also have to #define setreuid(r, e)
251 to be the appropriate call. Some systems (such as Solaris)
252 have a compatibility routine that doesn't work properly,
253 but may have "saved user ids" properly implemented so you
254 can ``#define setreuid(r, e) seteuid(e)'' and have it work.
255 The important thing is that you have a call that will set
256 the effective uid independently of the real or saved uid
257 and be able to set the effective uid back again when done.
258 There's a test program in ../test/t_setreuid.c that will
259 try things on your system. Setting this improves the
260 security, since sendmail doesn't have to read .forward
261 and :include: files as root. There are certain attacks
262 that may be unpreventable without this call.
263 USESETEUID Define this to 1 if you have a seteuid(2) system call that
264 will allow root to set only the effective user id to an
265 arbitrary value ***AND*** you have saved user ids. This is
266 preferable to HASSETREUID if these conditions are fulfilled.
267 These are the semantics of the to-be-released revision of
268 Posix.1. The test program ../test/t_seteuid.c will try
269 this out on your system. If you define both HASSETREUID
270 and USESETEUID, the former is ignored.
271 HASSETEGID Define this if you have setegid(2) and it can be
272 used to set the saved gid. Please run t_dropgid in
273 test/ if you are not sure whether the call works.
274 HASSETREGID Define this if you have setregid(2) and it can be
275 used to set the saved gid. Please run t_dropgid in
276 test/ if you are not sure whether the call works.
277 HASSETRESGID Define this if you have setresgid(2) and it can be
278 used to set the saved gid. Please run t_dropgid in
279 test/ if you are not sure whether the call works.
280 HASLSTAT Define this if you have symbolic links (and thus the
281 lstat(2) system call). This improves security. Unlike
282 most other options, this one is on by default, so you
283 need to #undef it in conf.h if you don't have symbolic
284 links (these days everyone does).
285 HASSETRLIMIT Define this to 1 if you have the setrlimit(2) syscall.
286 You can define it to 0 to force it off. It is assumed
287 if you are running a BSD-like system.
288 HASULIMIT Define this if you have the ulimit(2) syscall (System V
289 style systems). HASSETRLIMIT overrides, as it is more
291 HASWAITPID Define this if you have the waitpid(2) syscall.
293 Define this if you have the getdtablesize(2) syscall.
294 HAS_ST_GEN Define this to 1 if your system has the st_gen field in
295 the stat structure (see stat(2)).
296 HASSRANDOMDEV Define this if your system has the srandomdev(3) function
298 HASURANDOMDEV Define this if your system has /dev/urandom(4).
299 HASSTRERROR Define this if you have the libc strerror(3) function (which
300 should be declared in <errno.h>), and it should be used
301 instead of sys_errlist.
302 HASCLOSEFROM Define this if your system has closefrom(3).
303 HASFDWALK Define this if your system has fdwalk(3).
304 SM_CONF_GETOPT Define this as 0 if you need a reimplementation of getopt(3).
305 On some systems, getopt does very odd things if called
306 to scan the arguments twice. This flag will ask sendmail
307 to compile in a local version of getopt that works
308 properly. You may also need this if you build with
309 another library that introduces a non-standard getopt(3).
310 NEEDSTRTOL Define this if your standard C library does not define
311 strtol(3). This will compile in a local version.
312 NEEDFSYNC Define this if your standard C library does not define
313 fsync(2). This will try to simulate the operation using
314 fcntl(2); if that is not available it does nothing, which
315 isn't great, but at least it compiles and runs.
316 HASGETUSERSHELL Define this to 1 if you have getusershell(3) in your
317 standard C library. If this is not defined, or is defined
318 to be 0, sendmail will scan the /etc/shells file (no
319 NIS-style support, defaults to /bin/sh and /bin/csh if
320 that file does not exist) to get a list of unrestricted
321 user shells. This is used to determine whether users
322 are allowed to forward their mail to a program or a file.
323 NEEDPUTENV Define this if your system needs am emulation of the
324 putenv(3) call. Define to 1 to implement it in terms
325 of setenv(3) or to 2 to do it in terms of primitives.
326 NOFTRUNCATE Define this if you don't have the ftruncate(2) syscall.
327 If you don't have this system call, there is an unavoidable
328 race condition that occurs when creating alias databases.
329 GIDSET_T The type of entries in a gidset passed as the second
330 argument to getgroups(2). Historically this has been an
331 int, so this is the default, but some systems (such as
332 IRIX) pass it as a gid_t, which is an unsigned short.
333 This will make a difference, so it is important to get
334 this right! However, it is only an issue if you have
336 SLEEP_T The type returned by the system sleep() function.
337 Defaults to "unsigned int". Don't worry about this
338 if you don't have compilation problems.
339 ARBPTR_T The type of an arbitrary pointer -- defaults to "void *".
340 If you are an very old compiler you may need to define
342 SOCKADDR_LEN_T The type used for the third parameter to accept(2),
343 getsockname(2), and getpeername(2), representing the
344 length of a struct sockaddr. Defaults to int.
345 SOCKOPT_LEN_T The type used for the fifth parameter to getsockopt(2)
346 and setsockopt(2), representing the length of the option
347 buffer. Defaults to int.
348 LA_TYPE The type of load average your kernel supports. These
350 LA_ZERO (1) -- it always returns the load average as
351 "zero" (and does so on all architectures).
352 LA_INT (2) to read /dev/kmem for the symbol avenrun and
353 interpret as a long integer.
354 LA_FLOAT (3) same, but interpret the result as a floating
356 LA_SHORT (6) to interpret as a short integer.
357 LA_SUBR (4) if you have the getloadavg(3) routine in your
359 LA_MACH (5) to use MACH-style load averages (calls
360 processor_set_info()),
361 LA_PROCSTR (7) to read /proc/loadavg and interpret it
362 as a string representing a floating-point
363 number (Linux-style).
364 LA_READKSYM (8) is an implementation suitable for some
365 versions of SVr4 that uses the MIOC_READKSYM ioctl
366 call to read /dev/kmem.
367 LA_DGUX (9) is a special implementation for DG/UX that uses
368 the dg_sys_info system call.
369 LA_HPUX (10) is an HP-UX specific version that uses the
370 pstat_getdynamic system call.
371 LA_IRIX6 (11) is an IRIX 6.x specific version that adapts
372 to 32 or 64 bit kernels; it is otherwise very similar
374 LA_KSTAT (12) uses the (Solaris-specific) kstat(3k)
376 LA_DEVSHORT (13) reads a short from a system file (default:
377 /dev/table/avenrun) and scales it in the same manner
379 LA_LONGLONG (17) to read /dev/kmem for the symbol avenrun and
380 interpret as a long long integer (e.g., for 64 bit
382 LA_INT, LA_SHORT, LA_FLOAT, and LA_READKSYM have several
383 other parameters that they try to divine: the name of your
384 kernel, the name of the variable in the kernel to examine,
385 the number of bits of precision in a fixed point load average,
386 and so forth. LA_DEVSHORT uses _PATH_AVENRUN to find the
387 device to be read to find the load average.
388 In desperation, use LA_ZERO. The actual code is in
389 conf.c -- it can be tweaked if you are brave.
390 FSHIFT For LA_INT, LA_SHORT, and LA_READKSYM, this is the number
391 of bits of load average after the binary point -- i.e.,
392 the number of bits to shift right in order to scale the
393 integer to get the true integer load average. Defaults to 8.
394 _PATH_UNIX The path to your kernel. Needed only for LA_INT, LA_SHORT,
395 and LA_FLOAT. Defaults to "/unix" on System V, "/vmunix"
397 LA_AVENRUN For LA_INT, LA_SHORT, and LA_FLOAT, the name of the kernel
398 variable that holds the load average. Defaults to "avenrun"
399 on System V, "_avenrun" everywhere else.
400 SFS_TYPE Encodes how your kernel can locate the amount of free
401 space on a disk partition. This can be set to SFS_NONE
402 (0) if you have no way of getting this information,
403 SFS_USTAT (1) if you have the ustat(2) system call,
404 SFS_4ARGS (2) if you have a four-argument statfs(2)
405 system call (and the include file is <sys/statfs.h>),
406 SFS_VFS (3), SFS_MOUNT (4), SFS_STATFS (5) if you have
407 the two-argument statfs(2) system call with includes in
408 <sys/vfs.h>, <sys/mount.h>, or <sys/statfs.h> respectively,
409 or SFS_STATVFS (6) if you have the two-argument statvfs(2)
410 call. The default if nothing is defined is SFS_NONE.
411 SFS_BAVAIL with SFS_4ARGS you can also set SFS_BAVAIL to the field name
412 in the statfs structure that holds the useful information;
413 this defaults to f_bavail.
414 SPT_TYPE Encodes how your system can display what a process is doing
415 on a ps(1) command (SPT stands for Set Process Title). Can
417 SPT_NONE (0) -- Don't try to set the process title at all.
418 SPT_REUSEARGV (1) -- Pad out your argv with the information;
419 this is the default if none specified.
420 SPT_BUILTIN (2) -- The system library has setproctitle.
421 SPT_PSTAT (3) -- Use the PSTAT_SETCMD option to pstat(2)
422 to set the process title; this is used by HP-UX.
423 SPT_PSSTRINGS (4) -- Use the magic PS_STRINGS pointer (4.4BSD).
424 SPT_SYSMIPS (5) -- Use sysmips() supported by NEWS-OS 6.
425 SPT_SCO (6) -- Write kernel u. area.
426 SPT_CHANGEARGV (7) -- Write pointers to our own strings into
427 the existing argv vector.
428 SPT_PADCHAR Character used to pad the process title; if undefined,
429 the space character (0x20) is used. This is ignored if
430 SPT_TYPE != SPT_REUSEARGV
432 If set, assumes that some header file defines sys_errlist.
433 This may be needed if you get type conflicts on this
434 variable -- otherwise don't worry about it.
435 WAITUNION The wait(2) routine takes a "union wait" argument instead
436 of an integer argument. This is for compatibility with
438 SCANF You can set this to extend the F command to accept a
439 scanf string -- this gives you a primitive parser for
440 class definitions -- BUT it can make you vulnerable to
441 core dumps if the target file is poorly formed.
442 SYSLOG_BUFSIZE You can define this to be the size of the buffer that
443 syslog accepts. If it is not defined, it assumes a
444 1024-byte buffer. If the buffer is very small (under
445 256 bytes) the log message format changes -- each
446 e-mail message will log many more messages, since it
447 will log each piece of information as a separate line
450 On Ultrix (and maybe other systems?) if you use the
451 res_search routine with an unknown host name, it returns
452 -1 but sets h_errno to 0 instead of HOST_NOT_FOUND. If
453 you set this, sendmail considers 0 to be the same as
455 NAMELISTMASK If defined, values returned by nlist(3) are masked
456 against this value before use -- a common value is
457 0x7fffffff to strip off the top bit.
458 BSD4_4_SOCKADDR If defined, socket addresses have an sa_len field that
459 defines the length of this address.
460 SAFENFSPATHCONF Set this to 1 if and only if you have verified that a
461 pathconf(2) call with _PC_CHOWN_RESTRICTED argument on an
462 NFS filesystem where the underlying system allows users to
463 give away files to other users returns <= 0. Be sure you
464 try both on NFS V2 and V3. Some systems assume that their
465 local policy apply to NFS servers -- this is a bad
466 assumption! The test/t_pathconf.c program will try this
467 for you -- you have to run it in a directory that is
468 mounted from a server that allows file giveaway.
469 SIOCGIFCONF_IS_BROKEN
470 Set this if your system has an SIOCGIFCONF ioctl defined,
471 but it doesn't behave the same way as "most" systems (BSD,
472 Solaris, SunOS, HP-UX, etc.)
474 Set this if your system has an SIOCGIFNUM ioctl defined,
475 but it doesn't behave the same way as "most" systems
478 Set this if your system can reuse the same PID in the same
480 SO_REUSEADDR_IS_BROKEN
481 Set this if your system has a setsockopt() SO_REUSEADDR
482 flag but doesn't pay attention to it when trying to bind a
483 socket to a recently closed port.
484 NEEDSGETIPNODE Set this if your system supports IPv6 but doesn't include
485 the getipnodeby{name,addr}() functions. Set automatically
487 PIPELINING Support SMTP PIPELINING (set by default).
489 Deprecated in favor of SM_CONF_LDAP_MEMFREE. See
491 NEEDLINK Set this if your system doesn't have a link() call. It
492 will create a copy of the file instead of a hardlink.
493 USE_ENVIRON Set this to 1 to access process environment variables from
494 the external variable environ instead of the third
496 USE_DOUBLE_FORK By default this is on (1). Set it to 0 to suppress the
497 extra fork() used to avoid intermediate zombies.
498 ALLOW_255 Do not convert (char)0xff to (char)0x7f in headers etc.
499 This can also be done at runtime with the command line
501 NEEDINTERRNO Set this if <errno.h> does not declare errno, i.e., if an
502 application needs to use
504 USE_TTYPATH Set this to 1 to enable ErrorMode=write.
505 USESYSCTL Use sysctl(3) to determine the number of CPUs in a system.
506 HASSNPRINTF Set this to 1 if your OS has a working snprintf(3), i.e.,
507 it properly obeys the size of the buffer and returns the
508 number of characters that would have been printed if the
510 LDAP_REFERRALS Set this if you want to use the -R flag (do not auto chase
511 referrals) for LDAP maps (requires -DLDAPMAP).
512 MILTER_NO_NAGLE Turn off Nagle algorithm for communication with libmilter
513 ("cork" on Linux). On some operating systems this may
514 improve the interprocess communication performance.
517 +-----------------------+
518 | COMPILE-TIME FEATURES |
519 +-----------------------+
521 There are a bunch of features that you can decide to compile in, such
522 as selecting various database packages and special protocol support.
523 Several are assumed based on other compilation flags -- if you want to
524 "un-assume" something, you probably need to edit conf.h. Compilation
525 flags that add support for special features include:
527 NDBM Include support for "new" DBM library for aliases and maps.
528 Normally defined in the Makefile.
529 NEWDB Include support for Berkeley DB package (hash & btree)
530 for aliases and maps. Normally defined in the Makefile.
531 If the version of NEWDB you have is the old one that does
532 not include the "fd" call (this call was added in version
533 1.5 of the Berkeley DB code), you must upgrade to the
534 current version of Berkeley DB.
535 NIS Define this to get NIS (YP) support for aliases and maps.
536 Normally defined in the Makefile.
537 NISPLUS Define this to get NIS+ support for aliases and maps.
538 Normally defined in the Makefile.
539 HESIOD Define this to get Hesiod support for aliases and maps.
540 Normally defined in the Makefile.
541 NETINFO Define this to get NeXT NetInfo support for aliases and maps.
542 Normally defined in the Makefile.
543 LDAPMAP Define this to get LDAP support for maps.
544 PH_MAP Define this to get PH support for maps.
545 MAP_NSD Define this to get nsd support for maps.
546 USERDB Define this to 1 to include support for the User Information
547 Database. Implied by NEWDB or HESIOD. You can use
548 -DUSERDB=0 to explicitly turn it off.
549 IDENTPROTO Define this as 1 to get IDENT (RFC 1413) protocol support.
550 This is assumed unless you are running on Ultrix or
551 HP-UX, both of which have a problem in the UDP
552 implementation. You can define it to be 0 to explicitly
553 turn off IDENT protocol support. If defined off, the code
554 is actually still compiled in, but it defaults off; you
555 can turn it on by setting the IDENT timeout in the
557 IP_SRCROUTE Define this to 1 to get IP source routing information
558 displayed in the Received: header. This is assumed on
559 most systems, but some (e.g., Ultrix) apparently have a
560 broken version of getsockopt that doesn't properly
561 support the IP_OPTIONS call. You probably want this if
562 your OS can cope with it. Symptoms of failure will be that
563 it won't compile properly (that is, no support for fetching
564 IP_OPTIONs), or it compiles but source-routed TCP connections
565 either refuse to open or open and hang for no apparent reason.
566 Ultrix and AIX3 are known to fail this way.
567 LOG Set this to get syslog(3) support. Defined by default
568 in conf.h. You want this if at all possible.
569 NETINET Set this to get TCP/IP support. Defined by default
570 in conf.h. You probably want this.
571 NETINET6 Set this to get IPv6 support. Other configuration may
572 be needed in conf.h for your particular operating system.
573 Also, DaemonPortOptions must be set appropriately for
574 sendmail to accept IPv6 connections.
575 NETISO Define this to get ISO networking support.
576 NETUNIX Define this to get Unix domain networking support. Defined
577 by default. A few bizarre systems (SCO, ISC, Altos) don't
578 support this networking domain.
579 NETNS Define this to get NS networking support.
580 NETX25 Define this to get X.25 networking support.
581 NAMED_BIND If non-zero, include DNS (name daemon) support, including
582 MX support. The specs say you must use this if you run
583 SMTP. You don't have to be running a name server daemon
584 on your machine to need this -- any use of the DNS resolver,
585 including remote access to another machine, requires this
586 option. Defined by default in conf.h. Define it to zero
587 ONLY on machines that do not use DNS in any way.
588 MATCHGECOS Permit fuzzy matching of user names against the full
589 name (GECOS) field in the /etc/passwd file. This should
590 probably be on, since you can disable it from the config
591 file if you want to. Defined by default in conf.h.
592 MIME8TO7 If non-zero, include 8 to 7 bit MIME conversions. This
593 also controls advertisement of 8BITMIME in the ESMTP
595 MIME7TO8_OLD If 0 then use an algorithm for MIME 7-bit quoted-printable
596 or base64 encoding to 8-bit text that has been introduced
597 in 8.12.3. There are some examples where that code fails,
598 but the old code works. If you have an example of improper
599 7 to 8 bit conversion please send it to sendmail-bugs.
600 MIME7TO8 If non-zero, include 7 to 8 bit MIME conversions.
601 HES_GETMAILHOST Define this to 1 if you are using Hesiod with the
602 hes_getmailhost() routine. This is included with the MIT
603 Hesiod distribution, but not with the DEC Hesiod distribution.
604 XDEBUG Do additional internal checking. These don't cost too
605 much; you might as well leave this on.
606 TCPWRAPPERS Turns on support for the TCP wrappers library (-lwrap).
607 See below for further information.
608 SECUREWARE Enable calls to the SecureWare luid enabling/changing routines.
609 SecureWare is a C2 security package added to several UNIX's
610 (notably ConvexOS) to get a C2 Secure system. This
611 option causes mail delivery to be done with the luid of the
613 SHARE_V1 Support for the fair share scheduler, version 1. Setting to
614 1 causes final delivery to be done using the recipients
615 resource limitations. So far as I know, this is only
616 supported on ConvexOS.
617 SASL Enables SMTP AUTH (RFC 2554). This requires the Cyrus SASL
618 library (ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/). Please
619 install at least version 1.5.13. See below for further
620 information: SASL COMPILATION AND CONFIGURATION. If your
621 SASL library is older than 1.5.10, you have to set this
622 to its version number using a simple conversion: a.b.c
623 -> c + b*100 + a*10000, e.g. for 1.5.9 define SASL=10509.
624 Note: Using an older version than 1.5.5 of Cyrus SASL is
625 not supported. Starting with version 1.5.10, setting SASL=1
626 is sufficient. Any value other than 1 (or 0) will be
627 compared with the actual version found and if there is a
628 mismatch, compilation will fail.
629 EGD Define this if your system has EGD installed, see
630 http://egd.sourceforge.net/ . It should be used to
631 seed the PRNG for STARTTLS if HASURANDOMDEV is not defined.
632 STARTTLS Enables SMTP STARTTLS (RFC 2487). This requires OpenSSL
633 (http://www.OpenSSL.org/); use OpenSSL 0.9.5a or later
634 (if compatible with this version), do not use 0.9.3.
635 See STARTTLS COMPILATION AND CONFIGURATION for further
637 TLS_NO_RSA Turn off support for RSA algorithms in STARTTLS.
638 MILTER Turn on support for external filters using the Milter API;
639 this option is set by default, to turn it off use
640 APPENDDEF(`conf_sendmail_ENVDEF', `-DMILTER=0')
641 in devtools/Site/site.config.m4 (see devtools/README).
642 See libmilter/README for more information about milter.
643 REQUIRES_DIR_FSYNC Turn on support for file systems that require to
644 call fsync() for a directory if the meta-data in it has
645 been changed. This should be turned on at least for older
646 versions of ReiserFS; it is enabled by default for Linux.
647 According to some information this flag is not needed
648 anymore for kernel 2.4.16 and newer. We would appreciate
649 feedback about the semantics of the various file systems
651 An alternative to this compile time flag is to mount the
652 queue directory without the -async option, or using
654 DBMMODE The default file permissions to use when creating new
655 database files for maps and aliases. Defaults to 0640.
657 Generic notice: If you enable a compile time option that needs
658 libraries or include files that don't come with sendmail or are
659 installed in a location that your C compiler doesn't use by default
660 you should set confINCDIRS and confLIBDIRS as explained in the
661 first section: BUILDING SENDMAIL.
664 +---------------------+
665 | DNS/RESOLVER ISSUES |
666 +---------------------+
668 Many systems have old versions of the resolver library. At a minimum,
669 you should be running BIND 4.8.3; older versions may compile, but they
670 have known bugs that should give you pause.
672 Common problems in old versions include "undefined" errors for
675 Some people have had a problem with BIND 4.9; it uses some routines
676 that it expects to be externally defined such as strerror(). It may
677 help to link with "-l44bsd" to solve this problem. This has apparently
678 been fixed in later versions of BIND, starting around 4.9.3. In other
679 words, if you use 4.9.0 through 4.9.2, you need -l44bsd; for earlier or
680 later versions, you do not.
682 !PLEASE! be sure to link with the same version of the resolver as
683 the header files you used -- some people have used the 4.9 headers
684 and linked with BIND 4.8 or vice versa, and it doesn't work.
685 Unfortunately, it doesn't fail in an obvious way -- things just
688 WILDCARD MX RECORDS ARE A BAD IDEA! The only situation in which they
689 work reliably is if you have two versions of DNS, one in the real world
690 which has a wildcard pointing to your firewall, and a completely
691 different version of the database internally that does not include
692 wildcard MX records that match your domain. ANYTHING ELSE WILL GIVE
695 When attempting to canonify a hostname, some broken name servers will
696 return SERVFAIL (a temporary failure) on T_AAAA (IPv6) lookups. If you
697 want to excuse this behavior, include WorkAroundBrokenAAAA in
698 ResolverOptions. However, instead, we recommend catching the problem and
699 reporting it to the name server administrator so we can rid the world of
703 +----------------------------------------+
704 | STARTTLS COMPILATION AND CONFIGURATION |
705 +----------------------------------------+
707 Please read the documentation accompanying the OpenSSL library. You
708 have to compile and install the OpenSSL libraries before you can compile
709 sendmail. See devtools/README how to set the correct compile time
710 parameters; you should at least set the following variables:
712 APPENDDEF(`conf_sendmail_ENVDEF', `-DSTARTTLS')
713 APPENDDEF(`conf_sendmail_LIBS', `-lssl -lcrypto')
715 If you have installed the OpenSSL libraries and include files in
716 a location that your C compiler doesn't use by default you should
717 set confINCDIRS and confLIBDIRS as explained in the first section:
720 Configuration information can be found in doc/op/op.me (required
721 certificates) and cf/README (how to tell sendmail about certificates).
723 To perform an initial test, connect to your sendmail daemon
724 (telnet localhost 25) and issue a EHLO localhost and see whether
726 is in the response. If it isn't, run the daemon with
728 and try again. Then take a look at the logfile and see whether
729 there are any problems listed about permissions (unsafe files)
730 or the validity of X.509 certificates.
732 From: Garrett Wollman <wollman@lcs.mit.edu>
734 If your certificate authority is hierarchical, and you only include
735 the top-level CA certificate in the CACertFile file, some mail clients
736 may be unable to infer the proper certificate chain when selecting a
737 client certificate. Including the bottom-level CA certificate(s) in
738 the CACertFile file will allow these clients to work properly. This
739 is not necessary if you are not using client certificates for
740 authentication, or if all your clients are running Sendmail or other
741 programs using the OpenSSL library (which get it right automatically).
742 In addition, some mail clients are totally incapable of using
743 certificate authentication -- even some of those which already support
744 SSL/TLS for confidentiality.
746 Further information can be found via:
747 http://www.sendmail.org/tips/
750 +------------------------------------+
751 | SASL COMPILATION AND CONFIGURATION |
752 +------------------------------------+
754 Please read the documentation accompanying the Cyrus SASL library
755 (INSTALL and README). If you use Berkeley DB for Cyrus SASL then
756 you must compile sendmail with the same version of Berkeley DB.
757 See devtools/README for how to set the correct compile time parameters;
758 you should at least set the following variables:
760 APPENDDEF(`conf_sendmail_ENVDEF', `-DSASL')
761 APPENDDEF(`conf_sendmail_LIBS', `-lsasl')
763 If you have installed the Cyrus SASL library and include files in
764 a location that your C compiler doesn't use by default you should
765 set confINCDIRS and confLIBDIRS as explained in the first section:
768 You have to select and install authentication mechanisms and tell
769 sendmail where to find the sasl library and the include files (see
770 devtools/README for the parameters to set). Set up the required
771 users and passwords as explained in the SASL documentation. See
772 also cf/README for authentication related options (especially
773 DefaultAuthInfo if you want authentication between MTAs).
775 To perform an initial test, connect to your sendmail daemon
776 (telnet localhost 25) and issue a EHLO localhost and see whether
778 is in the response. If it isn't, run the daemon with
780 and try again. Then take a look at the logfile and see whether
781 there are any security related problems listed (unsafe files).
783 Further information can be found via:
784 http://www.sendmail.org/tips/
787 +-------------------------------------+
788 | OPERATING SYSTEM AND COMPILE QUIRKS |
789 +-------------------------------------+
792 When compiling with "gcc -O -Wall" specify "-DSM_OMIT_BOGUS_WARNINGS"
793 too (see include/sm/cdefs.h for more info).
795 *****************************************************************
796 ** IMPORTANT: DO NOT USE OPTIMIZATION (``-O'') IF YOU ARE **
797 ** RUNNING GCC 2.4.x or 2.5.x. THERE IS A BUG IN THE GCC **
798 ** OPTIMIZER THAT CAUSES SENDMAIL COMPILES TO FAIL MISERABLY. **
799 *****************************************************************
801 Jim Wilson of Cygnus believes he has found the problem -- it will
802 probably be fixed in GCC 2.5.6 -- but until this is verified, be
803 very suspicious of gcc -O. This problem is reported to have been
806 A bug in gcc 2.5.5 caused problems compiling sendmail 8.6.5 with
807 optimization on a Sparc. If you are using gcc 2.5.5, youi should
808 upgrade to the latest version of gcc.
810 Apparently GCC 2.7.0 on the Pentium processor has optimization
811 problems. I recommend against using -O on that architecture. This
812 has been seen on FreeBSD 2.0.5 RELEASE.
814 Solaris 2.X users should use version 2.7.2.3 over 2.7.2.
816 We have been told there are problems with gcc 2.8.0. If you are
817 using this version, you should upgrade to 2.8.1 or later.
820 Berkeley DB 4.1.x with x <= 24 does not work with sendmail.
821 You need at least 4.1.25.
823 GDBM GDBM does not work with sendmail because the additional
824 security checks and file locking cause problems. Unfortunately,
825 gdbm does not provide a compile flag in its version of ndbm.h so
826 the code can adapt. Until the GDBM authors can fix these problems,
827 GDBM will not be supported. Please use Berkeley DB instead.
829 Configuration file location
830 Up to 8.6, sendmail tried to find the sendmail.cf file in the same
831 place as the vendors had put it, even when this was obviously
832 stupid. As of 8.7, sendmail ALWAYS looks for /etc/sendmail.cf.
833 Beginning with 8.10, sendmail uses /etc/mail/sendmail.cf.
834 You can get sendmail to use the stupid vendor .cf location by
835 adding -DUSE_VENDOR_CF_PATH during compilation, but this may break
836 support programs and scripts that need to find sendmail.cf. You
837 are STRONGLY urged to use symbolic links if you want to use the
838 vendor location rather than changing the location in the sendmail
841 NETINFO systems use NETINFO to determine the location of
842 sendmail.cf. The full path to sendmail.cf is stored as the value of
843 the "sendmail.cf" property in the "/locations/sendmail"
844 subdirectory of NETINFO. Set the value of this property to
845 "/etc/mail/sendmail.cf" (without the quotes) to use this new
846 default location for Sendmail 8.10.0 and higher.
848 ControlSocket permissions
849 Paraphrased from BIND 8.2.1's README:
851 Solaris and other pre-4.4BSD kernels do not respect ownership or
852 protections on UNIX-domain sockets. The short term fix for this is to
853 override the default path and put such control sockets into root-
854 owned directories which do not permit non-root to r/w/x through them.
855 The long term fix is for all kernels to upgrade to 4.4BSD semantics.
858 The MPE-specific code within sendmail emulates a set-user-id root
859 environment for the sendmail binary. But there is no root uid 0 on
860 MPE, nor is there any support for set-user-id programs. Even when
861 sendmail thinks it is running as uid 0, it will still have the file
862 access rights of the underlying non-zero uid, but because sendmail is
863 an MPE priv-mode program it will still be able to call setuid() to
864 successfully switch to a new uid.
866 MPE setgid() semantics don't quite work the way sendmail expects, so
867 special emulation is done here also.
869 This uid/gid emulation is enabled via the setuid/setgid file mode bits
870 which are not currently used by MPE. Code in libsm/mpeix.c examines
871 these bits and enables emulation if they have been set, i.e.,
872 chmod u+s,g+s /SENDMAIL/CURRENT/SENDMAIL.
874 SunOS 4.x (Solaris 1.x)
875 You may have to use -lresolv on SunOS. However, beware that
876 this links in a new version of gethostbyname that does not
877 understand NIS, so you must have all of your hosts in DNS.
879 Some people have reported problems with the SunOS version of
880 -lresolv and/or in.named, and suggest that you get a newer
881 version. The symptoms are delays when you connect to the
882 SMTP server on a SunOS machine or having your domain added to
883 addresses inappropriately. There is a version of BIND
884 version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9.
886 There is substantial disagreement about whether you can make
887 this work with resolv+, which allows you to specify a search-path
888 of services. Some people report that it works fine, others
889 claim it doesn't work at all (including causing sendmail to
890 drop core when it tries to do multiple resolv+ lookups for a
891 single job). I haven't tried resolv+, as we use DNS exclusively.
893 Should you want to try resolv+, it is on ftp.uu.net in
896 Apparently getservbyname() can fail under moderate to high
897 load under some circumstances. This will exhibit itself as
898 the message ``554 makeconnection: service "smtp" unknown''.
899 The problem has been traced to one or more blank lines in
900 /etc/services on the NIS server machine. Delete these
901 and it should work. This info is thanks to Brian Bartholomew
902 <bb@math.ufl.edu> of I-Kinetics, Inc.
904 NOTE: The SunOS 4.X linker uses library paths specified during
905 compilation using -L for run-time shared library searches.
906 Therefore, it is vital that relative and unsafe directory paths not
907 be used when compiling sendmail.
909 SunOS 4.0.2 (Sun 386i)
910 Date: Fri, 25 Aug 1995 11:13:58 +0200 (MET DST)
913 Sendmail 8.7.Beta.12 compiles and runs nearly out of the box with the
915 * Don't use /usr/5bin in your PATH, but make /usr/5bin/uname
916 available as "uname" command.
917 * Use the defines "-DBSD4_3 -DNAMED_BIND=0" in
918 devtools/OS/SunOS.4.0, which is selected via the "uname" command.
919 I recommend to make available the db-library on the system first
920 (and change the Makefile to use this library).
921 Note that the sendmail.cf and aliases files are found in /etc.
923 SunOS 4.1.3, 4.1.3_U1
924 Sendmail causes crashes on SunOS 4.1.3 and 4.1.3_U1. According
925 to Sun bug number 1077939:
927 If an application does a getsockopt() on a SOCK_STREAM (TCP) socket
928 after the other side of the connection has sent a TCP RESET for
929 the stream, the kernel gets a Bus Trap in the tcp_ctloutput() or
930 ip_ctloutput() routine.
932 For 4.1.3, this is fixed in patch 100584-08, available on the
933 Sunsolve 2.7.1 or later CDs. For 4.1.3_U1, this was fixed in patch
934 101790-01 (SunOS 4.1.3_U1: TCP socket and reset problems), later
935 obsoleted by patch 102010-05.
937 Sun patch 100584-08 is not currently publicly available on their
938 ftp site but a user has reported it can be found at other sites
939 using a web search engine.
941 Solaris 2.x (SunOS 5.x)
942 To compile for Solaris, the Makefile built by Build must
943 include a SOLARIS definition which reflects the Solaris version
944 (i.e. -DSOLARIS=20400 for 2.4 or -DSOLARIS=20501 for 2.5.1).
945 If you are using gcc, make sure -I/usr/include is not used (or
946 it might complain about TopFrame). If you are using Sun's cc,
947 make sure /opt/SUNWspro/bin/cc is used instead of /usr/ucb/cc
948 (or it might complain about tm_zone).
950 The Solaris 2.x (x <= 3) "syslog" function is apparently limited
951 to something about 90 characters because of a kernel limitation.
952 If you have source code, you can probably up this number. You
953 can get patches that fix this problem: the patch ids are:
959 Be sure you have the appropriate patch installed or you won't
962 Solaris 2.4 (SunOS 5.4)
963 If you include /usr/lib at the end of your LD_LIBRARY_PATH you run
964 the risk of getting the wrong libraries under some circumstances.
965 This is because of a new feature in Solaris 2.4, described by
966 Rod.Evans@Eng.Sun.COM:
968 >> Prior to SunOS 5.4, any LD_LIBRARY_PATH setting was ignored by the
969 >> runtime linker if the application was setxid (secure), thus your
970 >> applications search path would be:
972 >> /usr/local/lib LD_LIBRARY_PATH component - IGNORED
973 >> /usr/lib LD_LIBRARY_PATH component - IGNORED
974 >> /usr/local/lib RPATH - honored
975 >> /usr/lib RPATH - honored
977 >> the effect is that path 3 would be the first used, and this would
978 >> satisfy your resolv.so lookup.
980 >> In SunOS 5.4 we made the LD_LIBRARY_PATH a little more flexible.
981 >> People who developed setxid applications wanted to be able to alter
982 >> the library search path to some degree to allow for their own
983 >> testing and debugging mechanisms. It was decided that the only
984 >> secure way to do this was to allow a `trusted' path to be used in
985 >> LD_LIBRARY_PATH. The only trusted directory we presently define
986 >> is /usr/lib. Thus a set-user-ID root developer could play with some
987 >> alternative shared object implementations and place them in
988 >> /usr/lib (being root we assume they'ed have access to write in this
989 >> directory). This change was made as part of 1155380 - after a
990 >> *huge* amount of discussion regarding the security aspect of things.
992 >> So, in SunOS 5.4 your applications search path would be:
994 >> /usr/local/lib from LD_LIBRARY_PATH - IGNORED (untrustworthy)
995 >> /usr/lib from LD_LIBRARY_PATH - honored (trustworthy)
996 >> /usr/local/lib from RPATH - honored
997 >> /usr/lib from RPATH - honored
999 >> here, path 2 would be the first used.
1001 Solaris 2.5.1 (SunOS 5.5.1) and 2.6 (SunOS 5.6)
1002 Apparently Solaris 2.5.1 patch 103663-01 installs a new
1003 /usr/include/resolv.h file that defines the __P macro without
1004 checking to see if it is already defined. This new resolv.h is also
1005 included in the Solaris 2.6 distribution. This causes compile
1008 In file included from daemon.c:51:
1009 /usr/include/resolv.h:208: warning: `__P' redefined
1010 cdefs.h:58: warning: this is the location of the previous definition
1012 These warnings can be safely ignored or you can create a resolv.h
1013 file in the obj.SunOS.5.5.1.* or obj.SunOS.5.6.* directory that reads:
1016 #include "/usr/include/resolv.h"
1018 This problem was fixed in Solaris 7 (Sun bug ID 4081053).
1020 Solaris 7 (SunOS 5.7)
1021 Solaris 7 includes LDAP libraries but the implementation was
1022 lacking a few things. The following settings can be placed in
1023 devtools/Site/site.SunOS.5.7.m4 if you plan on using those
1026 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1027 APPENDDEF(`confENVDEF', `-DLDAP_VERSION_MAX=3')
1028 APPENDDEF(`confLIBS', `-lldap')
1030 Also, Sun's patch 107555 is needed to prevent a crash in the call
1031 to ldap_set_option for LDAP_OPT_REFERRALS in ldapmap_setopts if
1032 LDAP support is compiled in sendmail.
1034 Solaris 8 and later (SunOS 5.8 and later)
1035 Solaris 8 and later can optionally install LDAP support. If you
1036 have installed the Entire Distribution meta-cluster, you can use
1037 the following in devtools/Site/site.SunOS.5.8.m4 (or other
1038 appropriately versioned file) to enable LDAP:
1040 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1041 APPENDDEF(`confLIBS', `-lldap')
1043 Solaris 9 and later (SunOS 5.9 and later)
1044 Solaris 9 and later have a revised LDAP library, libldap.so.5,
1045 which is derived from a Netscape implementation, thus requiring
1046 that SM_CONF_LDAP_MEMFREE be defined in conjunction with LDAPMAP:
1048 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1049 APPENDDEF(`confENVDEF', `-DSM_CONF_LDAP_MEMFREE')
1050 APPENDDEF(`confLIBS', `-lldap')
1053 If you are using dns for hostname resolution on Solaris, make sure
1054 that the 'dns' entry is last on the hosts line in
1055 '/etc/nsswitch.conf'. For example, use:
1057 hosts: nisplus files dns
1061 hosts: nisplus dns [NOTFOUND=return] files
1063 Note that 'nisplus' above is an illustration. The same comment
1064 applies no matter what naming services you are using. If you have
1065 anything other than dns last, even after "[NOTFOUND=return]",
1066 sendmail may not be able to determine whether an error was
1067 temporary or permanent. The error returned by the solaris
1068 gethostbyname() is the error for the last lookup used, and other
1069 naming services do not have the same concept of temporary failure.
1072 By default, the IDENT protocol is turned off on Ultrix. If you
1073 are running Ultrix 4.4 or later, or if you have included patch
1074 CXO-8919 for Ultrix 4.2 or 4.3 to fix the TCP problem, you can turn
1075 IDENT on in the configuration file by setting the "ident" timeout.
1077 The Ultrix 4.5 Y2K patch (ULTV45-022-1) has changed the resolver
1078 included in libc.a. Unfortunately, the __RES symbol hasn't changed
1079 and therefore, sendmail can no longer automatically detect the
1080 newer version. If you get a compiler error:
1082 /lib/libc.a(gethostent.o): local_hostname_length: multiply defined
1084 Then rebuild with this in devtools/Site/site.ULTRIX.m4:
1086 APPENDDEF(`conf_sendmail_ENVDEF', `-DNEEDLOCAL_HOSTNAME_LENGTH=0')
1088 Digital UNIX (formerly DEC OSF/1)
1089 If you are compiling on OSF/1 (DEC Alpha), you must use
1090 -L/usr/shlib (otherwise it core dumps on startup). You may also
1091 need -mld to get the nlist() function, although some versions
1092 apparently don't need this.
1094 Also, the enclosed makefile removed /usr/sbin/smtpd; if you need
1095 it, just create the link to the sendmail binary.
1097 On DEC OSF/1 3.2 or earlier, the MatchGECOS option doesn't work
1098 properly due to a bug in the getpw* routines. If you want to use
1099 this, use -DDEC_OSF_BROKEN_GETPWENT=1. The problem is fixed in 3.2C.
1101 Digital's mail delivery agent, /bin/mail (aka /bin/binmail), will
1102 only preserve the envelope sender in the "From " header if
1103 DefaultUserID is set to daemon. Setting this to mailnull will
1104 cause all mail to have the header "From mailnull ...". To use
1105 a different DefaultUserID, you will need to use a different mail
1106 delivery agent (such as mail.local found in the sendmail
1109 On Digital UNIX 4.0 and later, Berkeley DB 1.85 is included with the
1110 operating system and already has the ndbm.o module removed. However,
1111 Digital has modified the original Berkeley DB db.h include file.
1112 This results in the following warning while compiling map.c and udb.c:
1114 cc: Warning: /usr/include/db.h, line 74: The redefinition of the macro
1115 "__signed" conflicts with a current definition because the replacement
1116 lists differ. The redefinition is now in effect.
1117 #define __signed signed
1118 ------------------------^
1120 This warning can be ignored.
1122 Digital UNIX's linker checks /usr/ccs/lib/ before /usr/lib/.
1123 If you have installed a new version of BIND in /usr/include
1124 and /usr/lib, you will experience difficulties as Digital ships
1125 libresolv.a in /usr/ccs/lib/ as well. Be sure to replace both
1126 copies of libresolv.a.
1129 The header files on SGI IRIX are completely prototyped, and as
1130 a result you can sometimes get some warning messages during
1131 compilation. These can be ignored. There are two errors in
1132 deliver only if you are using gcc, both of the form ``warning:
1133 passing arg N of `execve' from incompatible pointer type''.
1134 Also, if you compile with -DNIS, you will get a complaint
1135 about a declaration of struct dom_binding in a prototype
1136 when compiling map.c; this is not important because the
1137 function being prototyped is not used in that file.
1139 In order to compile sendmail you will have had to install
1140 the developers' option in order to get the necessary include
1143 If you compile with -lmalloc (the fast memory allocator), you may
1144 get warning messages such as the following:
1146 ld32: WARNING 85: definition of _calloc in /usr/lib32/libmalloc.so
1147 preempts that definition in /usr/lib32/mips3/libc.so.
1148 ld32: WARNING 85: definition of _malloc in /usr/lib32/libmalloc.so
1149 preempts that definition in /usr/lib32/mips3/libc.so.
1150 ld32: WARNING 85: definition of _realloc in /usr/lib32/libmalloc.so
1151 preempts that definition in /usr/lib32/mips3/libc.so.
1152 ld32: WARNING 85: definition of _free in /usr/lib32/libmalloc.so
1153 preempts that definition in /usr/lib32/mips3/libc.so.
1154 ld32: WARNING 85: definition of _cfree in /usr/lib32/libmalloc.so
1155 preempts that definition in /usr/lib32/mips3/libc.so.
1157 These are unavoidable and innocuous -- just ignore them.
1159 According to Dave Sill <de5@ornl.gov>, there is a version of the
1160 Berkeley DB library patched to run on Irix 6.2 available from
1161 http://reality.sgi.com/ariel/freeware/#db .
1164 If you are using XFS filesystem, avoid using the -32 ABI switch to
1165 the cc compiler if possible.
1167 Broken inet_aton and inet_ntoa on IRIX using gcc: There's
1168 a problem with gcc on IRIX, i.e., gcc can't pass structs
1169 less than 16 bits long unless they are 8 bits; IRIX 6.2 has
1170 some other sized structs. See
1171 http://www.bitmechanic.com/mail-archives/mysql/current/0418.html
1172 This problem seems to be fixed by gcc v2.95.2, gcc v2.8.1
1173 is reported as broken. Check your gcc version for this bug
1174 before installing sendmail.
1177 The IRIX 6.5.4 version of /bin/m4 does not work properly with
1178 sendmail. Either install fw_m4.sw.m4 off the Freeware_May99 CD and
1179 use /usr/freeware/bin/m4 or install and use GNU m4.
1182 NEXTSTEP 3.3 and earlier ship with the old DBM library. Also,
1183 Berkeley DB does not currently run on NEXTSTEP.
1185 If you are compiling on NEXTSTEP, you will have to create an
1186 empty file "unistd.h" and create a file "dirent.h" containing:
1188 #include <sys/dir.h>
1189 #define dirent direct
1191 (devtools/OS/NeXT should try to do both of these for you.)
1193 Apparently, there is a bug in getservbyname on Nextstep 3.0
1194 that causes it to fail under some circumstances with the
1195 message "SYSERR: service "smtp" unknown" logged. You should
1196 be able to work around this by including the line:
1202 BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0
1203 The "m4" from BSDI won't handle the config files properly.
1204 I haven't had a chance to test this myself.
1206 The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config
1207 files properly. One must use either GNU m4 1.1 or the PD-M4
1208 recently posted in comp.os.386bsd.bugs (and maybe others).
1209 NetBSD-current includes the PD-M4 (as stated in the NetBSD file
1212 FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to
1213 use it (look into devtools/OS/FreeBSD). NetBSD-current may have
1214 it too but it has not been verified.
1216 The latest version of Berkeley DB uses a different naming
1217 scheme than the version that is supplied with your release. This
1218 means you will be able to use the current version of Berkeley DB
1219 with sendmail as long you use the new db.h when compiling
1220 sendmail and link it against the new libdb.a or libdb.so. You
1221 should probably keep the original db.h in /usr/include and the
1222 new db.h in /usr/local/include.
1225 If you are running a "virgin" version of 4.3BSD, you'll have
1226 a very old resolver and be missing some header files. The
1227 header files are simple -- create empty versions and everything
1228 will work fine. For the resolver you should really port a new
1229 version (4.8.3 or later) of the resolver; 4.9 is available on
1230 gatekeeper.DEC.COM in pub/BSD/bind/4.9. If you are really
1231 determined to continue to use your old, buggy version (or as
1232 a shortcut to get sendmail working -- I'm sure you have the
1233 best intentions to port a modern version of BIND), you can
1234 copy ../contrib/oldbind.compat.c into sendmail and add the
1235 following to devtools/Site/site.config.m4:
1237 APPENDDEF(`confOBJADD', `oldbind.compat.o')
1239 OpenBSD (up to 2.9 Release), NetBSD, FreeBSD (up to 4.3-RELEASE)
1240 m4 from *BSD won't handle libsm/Makefile.m4 properly, since the
1241 maximum length for strings is too short. You need to use GNU m4
1242 or patch m4, see for example:
1243 http://FreeBSD.org/cgi/cvsweb.cgi/src/usr.bin/m4/eval.c.diff?r1=1.11&r2=1.12
1246 Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT)
1247 From: "Eric C. Hagberg" <hagberg@med.cornell.edu>
1248 Subject: Fix for A/UX ndbm
1250 I guess this isn't really a sendmail bug, however, it is something
1251 that A/UX users should be aware of when compiling sendmail 8.6.
1253 Apparently, the calls that sendmail is using to the ndbm routines
1254 in A/UX 3.0.x contain calls to "broken" routines, in that the
1255 aliases database will break when it gets "just a little big"
1256 (sorry I don't have exact numbers here, but it broke somewhere
1257 around 20-25 aliases for me.), making all aliases non-functional
1258 after exceeding this point.
1260 What I did was to get the gnu-dbm-1.6 package, compile it, and
1261 then re-compile sendmail with "-lgdbm", "-DNDBM", and using the
1262 ndbm.h header file that comes with the gnu-package. This makes
1263 things behave properly.
1264 [NOTE: see comment above about GDBM]
1266 I suppose porting the New Berkeley DB package is another route,
1267 however, I made a quick attempt at it, and found it difficult
1268 (not easy at least); the gnu-dbm package "configured" and
1271 [NOTE: Berkeley DB version 2.X runs on A/UX and can be used for
1275 From: Thomas Essebier <tom@stallion.oz.au>
1276 Organisation: Stallion Technologies Pty Ltd.
1278 It will probably help those who are trying to configure sendmail 8.6.9
1279 to know that if they are on SCO, they had better set
1281 or they will core dump as soon as they try to use the resolver.
1282 i.e., although SCO has _res.dnsrch defined, and is kinda BIND 4.8.3,
1283 it does not inititialise it, nor does it understand 'search' in
1287 According to SCO, the m4 which ships with UnixWare 2.1.2 is broken.
1288 We recommend installing GNU m4 before attempting to build sendmail.
1290 On some versions a bogus error value is listed if connections
1291 time out (large negative number). To avoid this explicitly set
1292 Timeout.connect to a reasonable value (several minutes).
1295 Doug Anderson <dlander@afterlife.ncsc.mil> has successfully run
1296 V8 on the DG/UX 5.4.2 and 5.4R3.x platforms under heavy usage.
1297 Originally, the DG /bin/mail program wasn't compatible with
1298 the V8 sendmail, since the DG /bin/mail requires the environment
1299 variable "_FORCE_MAIL_LOCAL_=yes" be set. Version 8.7 now includes
1300 this in the environment before invoking the local mailer. Some
1301 have used procmail to avoid this problem in the past. It works
1302 but some have experienced file locking problems with their DG/UX
1306 If you are compiling on Apollo, you will have to create an empty
1307 file "unistd.h" (for DomainOS 10.3 and earlier) and create a file
1308 "dirent.h" containing:
1310 #include <sys/dir.h>
1311 #define dirent direct
1313 (devtools/OS/DomainOS will attempt to do both of these for you.)
1316 Date: Mon, 24 Jan 1994 13:25:45 +0200
1317 From: Kimmo Suominen <Kimmo.Suominen@lut.fi>
1318 Subject: 8.6.5 w/ HP-UX 8.00 on s300
1320 Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (i.e.,
1321 a series 300 machine) running HP-UX 8.00.
1323 I was getting segmentation fault when delivering to a local user.
1324 With debugging I saw it was faulting when doing _free@libc... *sigh*
1325 It seems the new implementation of malloc on s300 is buggy as of 8.0,
1326 so I tried out the one in -lmalloc (malloc(3X)). With that it seems
1329 When linking, you will get the following error:
1331 ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a
1333 but you can just ignore it. You might want to add this info to the
1334 README file for the future...
1337 Something broke between versions 0.99.13 and 0.99.14 of Linux: the
1338 flock() system call gives errors. If you are running .14, you must
1339 not use flock. You can do this with -DHASFLOCK=0. We have also
1340 been getting complaints since version 2.4.X was released.
1341 sendmail 8.13 has changed the default locking method to fcntl()
1342 for Linux kernel version 2.4 and later. Be sure to update other
1343 sendmail related programs to match locking techniques (some
1344 examples, besides makemap and mail.local, include procmail, mailx,
1347 Around the inclusion of bind-4.9.3 & Linux libc-4.6.20, the
1348 initialization of the _res structure changed. If /etc/hosts.conf
1349 was configured as "hosts, bind" the resolver code could return
1350 "Name server failure" errors. This is supposedly fixed in
1351 later versions of libc (>= 4.6.29?), and later versions of
1352 sendmail (> 8.6.10) try to work around the problem.
1354 Some older versions (< 4.6.20?) of the libc/include files conflict
1355 with sendmail's version of cdefs.h. Deleting sendmail's version
1356 on those systems should be non-harmful, and new versions don't care.
1358 NOTE ON LINUX & BIND: By default, the Makefile generated for Linux
1359 includes header files in /usr/local/include and libraries in
1360 /usr/local/lib. If you've installed BIND on your system, the header
1361 files typically end up in the search path and you need to add
1362 "-lresolv" to the LIBS line in your Makefile. Really old versions
1363 may need to include "-l44bsd" as well (particularly if the link phase
1364 complains about missing strcasecmp, strncasecmp or strpbrk).
1365 Complaints about an undefined reference to `__dn_skipname' in
1366 domain.o are a sure sign that you need to add -lresolv to LIBS.
1367 Newer versions of Linux are basically threaded BIND, so you may or
1368 may not see complaints if you accidentally mix BIND
1369 headers/libraries with virginal libc. If you have BIND headers in
1370 /usr/local/include (resolv.h, etc) you *should* be adding -lresolv
1371 to LIBS. Data structures may change and you'd be asking for a
1374 A number of problems have been reported regarding the Linux 2.2.0
1375 kernel. So far, these problems have been tracked down to syslog()
1376 and DNS resolution. We believe the problem is with the poll()
1377 implementation in the Linux 2.2.0 kernel and poll()-aware versions
1378 of glib (at least up to 2.0.111).
1381 glibc 2.2.1 (and possibly other versions) changed the value of
1382 __RES in resolv.h but failed to actually provide the IPv6 API
1383 changes that the change implied. Therefore, compiling with
1387 1) Compile without -DNETINET6
1388 2) Build against a real BIND 8.2.2 include/lib tree
1389 3) Wait for glibc to fix it
1392 The AIX 4.X linker uses library paths specified during compilation
1393 using -L for run-time shared library searches. Therefore, it is
1394 vital that relative and unsafe directory paths not be using when
1395 compiling sendmail. Because of this danger, by default, compiles
1396 on AIX use the -blibpath option to limit shared libraries to
1397 /usr/lib and /lib. If you need to allow more directories, such as
1398 /usr/local/lib, modify your devtools/Site/site.AIX.4.2.m4,
1399 site.AIX.4.3.m4, and/or site.AIX.4.x.m4 file(s) and set confLDOPTS
1400 appropriately. For example:
1402 define(`confLDOPTS', `-blibpath:/usr/lib:/lib:/usr/local/lib')
1404 Be sure to only add (safe) system directories.
1406 The AIX version of GNU ld also exhibits this problem. If you are
1407 using that version, instead of -blibpath, use its -rpath option.
1410 gcc -Wl,-rpath /usr/lib -Wl,-rpath /lib -Wl,-rpath /usr/local/lib
1412 AIX 4.X If the test program t-event (and most others) in libsm fails,
1413 check your compiler settings. It seems that the flags -qnoro or
1414 -qnoroconst on some AIX versions trigger a compiler bug. Check
1415 your compiler settings or use cc instead of xlc.
1417 AIX 4.0-4.2, maybe some AIX 4.3 versions
1418 The AIX m4 implements a different mechanism for ifdef which is
1419 inconsistent with other versions of m4. Therefore, it will not
1420 work properly with the sendmail Build architecture or m4
1421 configuration method. To work around this problem, please use
1422 GNU m4 from ftp://ftp.gnu.org/pub/gnu/.
1423 The problem seems to be solved in AIX 4.3.3 at least.
1426 From: Valdis.Kletnieks@vt.edu
1427 Date: Sun, 02 Jul 2000 03:58:02 -0400
1429 Under AIX 4.3.3, after applying bos.adt.include 4.3.3.12 to close the
1430 BIND 8.2.2 security holes, you can no longer build with -DNETINET6
1431 because they changed the value of __RES in resolv.h but failed to
1432 actually provide the API changes that the change implied.
1435 1) Compile without -DNETINET6
1436 2) Build against a real BIND 8.2.2 include/lib tree
1437 3) Wait for IBM to fix it
1440 This version of sendmail does not support MB, MG, and MR resource
1441 records, which are supported by AIX sendmail.
1443 Several people have reported that the IBM-supplied named returns
1444 fairly random results -- the named should be replaced. It is not
1445 necessary to replace the resolver, which will simplify installation.
1446 A new BIND resolver can be found at http://www.isc.org/isc/.
1449 The supplied load average code only works correctly for AIX 3.2.x.
1450 For 3.1, use -DLA_TYPE=LA_SUBR and get the latest ``monitor''
1451 package by Jussi Maki <jmaki@hut.fi> from ftp.funet.fi in the
1452 directory pub/unix/AIX/rs6000/monitor-1.12.tar.Z; use the loadavgd
1453 daemon, and the getloadavg subroutine supplied with that package.
1454 If you don't care about load average throttling, just turn off
1455 load average checking using -DLA_TYPE=LA_ZERO.
1458 RISC/os from MIPS is a merged AT&T/Berkeley system. When you
1459 compile on that platform you will get duplicate definitions
1460 on many files. You can ignore these.
1462 System V Release 4 Based Systems
1463 There is a single devtools OS that is intended for all SVR4-based
1464 systems (built from devtools/OS/SVR4). It defines __svr4__,
1465 which is predefined by some compilers. If your compiler already
1466 defines this compile variable, you can delete the definition from
1467 the generated Makefile or create a devtools/Site/site.config.m4
1470 It's been tested on Dell Issue 2.2.
1473 Date: Mon, 06 Dec 1993 10:42:29 EST
1474 From: "Kimmo Suominen" <kim@grendel.lut.fi>
1475 Message-ID: <2d0352f9.lento29@lento29.UUCP>
1476 To: eric@cs.berkeley.edu
1477 Cc: sendmail@cs.berkeley.edu
1478 Subject: Notes for DELL SVR4
1482 Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4. I ran
1483 across these things when helping out some people who contacted me by
1486 1) Use gcc 2.4.5 (or later?). Dell distributes gcc 2.1 with their
1487 Issue 2.2 Unix. It is too old, and gives you problems with
1488 clock.c, because sigset_t won't get defined in <sys/signal.h>.
1489 This is due to a problematic protection rule in there, and is
1490 fixed with gcc 2.4.5.
1492 2) If you don't use the new Berkeley DB (-DNEWDB), then you need
1493 to add "-lc -lucb" to the libraries to link with. This is because
1494 the -ldbm distributed by Dell needs the bcopy, bcmp and bzero
1495 functions. It is important that you specify both libraries in
1496 the given order to be sure you only get the BSTRING functions
1497 from the UCB library (and not the signal routines etc.).
1499 3) Don't leave out "-lelf" even if compiling with "-lc -lucb".
1500 The UCB library also has another copy of the nlist routines,
1501 but we do want the ones from "-lelf".
1503 If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they
1504 can use anonymous ftp to fetch them from lut.fi in the /kim directory.
1505 They are copies of what I use on grendel.lut.fi, and offering them
1506 does not imply that I would also support them. I have sent the DB
1507 port for SVR4 back to Keith Bostic for inclusion in the official
1508 distribution, but I haven't heard anything from him as of today.
1510 - gcc-2.4.5-svr4.tar.gz (gcc 2.4.5 and the corresponding libg++)
1511 - db-1.72.tar.gz (with source, objects and a installed copy)
1516 * Kimmo.Suominen@lut.fi * SysVr4 enthusiast at GRENDEL.LUT.FI *
1517 * KIM@FINFILES.BITNET * Postmaster and Hostmaster at LUT.FI *
1518 * + 358 200 865 718 * Unix area moderator at NIC.FUNET.FI *
1520 ConvexOS 10.1 and below
1521 In order to use the name server, you must create the file
1522 /etc/use_nameserver. If this file does not exist, the call
1523 to res_init() will fail and you will have absolutely no
1524 access to DNS, including MX records.
1527 In order to get UTS to work, you will have to port BIND 4.9.
1528 The vendor's BIND is reported to be ``totally inadequate.''
1529 See sendmail/contrib/AmdahlUTS.patch for the patches necessary
1530 to get BIND 4.9 compiled for UTS.
1533 According to Alexander Kolbasov <sasha@unitech.gamma.ru>,
1534 the m4 on UnixWare 2.0 (still in Beta) will core dump on the
1535 config files. GNU m4 and the m4 from UnixWare 1.x both work.
1537 According to Larry Rosenman <ler@lerami.lerctr.org>:
1539 UnixWare 2.1.[23]'s m4 chokes (not obviously) when
1540 processing the 8.9.0 cf files.
1542 I had a LOCAL_RULE_0 that wound up AFTER the
1543 SBasic_check_rcpt rules using the SCO supplied M4.
1547 Some people have reported that the -O flag on UNICOS can cause
1548 problems. You may want to turn this off if you have problems
1549 running sendmail. Reported by Jerry G. DeLapp <jgd@acl.lanl.gov>.
1551 Darwin/Mac OS X (10.X.X)
1552 The linker errors produced regarding getopt() and its associated
1553 variables can safely be ignored.
1555 From Mike Zimmerman <zimmy@torrentnet.com>:
1557 From scratch here is what Darwin users need to do to the standard
1558 10.0.0, 10.0.1 install to get sendmail working.
1559 From http://www.macosx.com/forums/showthread.php?s=6dac0e9e1f3fd118a4870a8a9b559491&threadid=2242:
1560 1. chmod g-w / /private /private/etc
1561 2. Properly set HOSTNAME in /etc/hostconfig to your FQDN:
1562 HOSTNAME=-my.domain.com-
1563 3. Edit /etc/rc.boot:
1564 hostname my.domain.com
1565 domainname domain.com
1566 4. Edit /System/Library/StartupItems/Sendmail/Sendmail:
1567 Remove the "&" after the sendmail command:
1568 /usr/sbin/sendmail -bd -q1h
1570 From Carsten Klapp <carsten.klapp@home.com>:
1572 The easiest workaround is to remove the group-writable permission
1573 for the root directory and the symbolic /etc inherits this
1574 change. While this does fix sendmail, the unfortunate side-effect
1575 is the OS X admin will no longer be able to manipulate icons in the
1576 top level of the Startup disk unless logged into the GUI as the
1579 In applying the alternate workaround, care must be taken while
1580 swapping the symlink /etc with the directory /private/etc. In all
1581 likelihood any admin who is concerned with this sendmail error has
1582 enough experience to not accidentally harm anything in the process.
1584 a. Swap the /etc symlink with /private/etc (as superuser):
1586 mv /private/etc /etc
1587 ln -s /etc /private/etc
1589 b. Set / to group unwritable (as superuser):
1592 Darwin/Mac OS X (10.1.5)
1593 Apple's upgrade to sendmail 8.12 is incorrectly configured. You
1594 will need to manually fix it up by doing the following:
1596 1. chown smmsp:smmsp /var/spool/clientmqueue
1597 2. chmod 2770 /var/spool/clientmqueue
1598 3. chgrp smmsp /usr/sbin/sendmail
1599 4. chmod g+s /usr/sbin/sendmail
1601 From Daniel J. Luke <dluke@geeklair.net>:
1603 It appears that setting the sendmail.cf property in
1604 /locations/sendmail in NetInfo on Mac OS X 10.1.5 with sendmail
1605 8.12.4 causes 'bad things' to happen.
1607 Specifically sendmail instances that should be getting their config
1608 from /etc/mail/submit.cf don't (so mail/mutt/perl scripts which
1609 open pipes to sendmail stop working as sendmail tries to write to
1610 /var/spool/mqueue and cannot as sendmail is no longer suid root).
1612 Removing the entry from NetInfo fixes this problem.
1615 I'm told that GNU getopt has a problem in that it gets confused
1616 by the double call. Use the version in conf.c instead.
1618 BIND 4.9.2 and Ultrix
1619 If you are running on Ultrix, be sure you read conf/Info.Ultrix
1620 in the BIND distribution very carefully -- there is information
1621 in there that you need to know in order to avoid errors of the
1624 /lib/libc.a(gethostent.o): sethostent: multiply defined
1625 /lib/libc.a(gethostent.o): endhostent: multiply defined
1626 /lib/libc.a(gethostent.o): gethostbyname: multiply defined
1627 /lib/libc.a(gethostent.o): gethostbyaddr: multiply defined
1629 during the link stage.
1632 BIND 8.X returns HOST_NOT_FOUND instead of TRY_AGAIN on temporary
1633 DNS failures when trying to find the hostname associated with an IP
1634 address (gethostbyaddr()). This can cause problems as
1635 $&{client_name} based lookups in class R ($=R) and the access
1636 database won't succeed.
1638 This will be fixed in BIND 8.2.1. For earlier versions, this can
1639 be fixed by making "dns" the last name service queried for host
1640 resolution in /etc/irs.conf:
1642 hosts local continue
1646 Some compilers (notably gcc) claim to be ANSI C but do not
1647 include the ANSI-required routine "strtoul". If your compiler
1648 has this problem, you will get an error in srvrsmtp.c on the
1651 # ifdef defined(__STDC__) && !defined(BROKEN_ANSI_LIBRARY)
1652 e->e_msgsize = strtoul(vp, (char **) NULL, 10);
1654 e->e_msgsize = strtol(vp, (char **) NULL, 10);
1657 You can use -DBROKEN_ANSI_LIBRARY to get around this problem.
1660 Date: 23 Sep 1995 23:56:07 GMT
1661 Message-ID: <95925101334.~INN-AUMa00187.comp-news@dl.ac.uk>
1662 From: alansz@mellers1.psych.berkeley.edu (Alan Schwartz)
1663 Subject: Listproc 6.0c + Sendmail 8.7 [Helpful hint]
1665 Just upgraded to sendmail 8.7, and discovered that listproc 6.0c
1666 breaks, because it, by default, sends a blank "HELO" rather than
1667 a "HELO hostname" when using the 'system' or 'telnet' mail method.
1669 The fix is to include -DZMAILER in the compilation, which will
1670 cause it to use "HELO hostname" (which Z-mail apparently requires
1674 OpenSSL versions prior to 0.9.6 use a macro named Free which
1675 conflicts with existing macro names on some platforms, such as
1677 Do not use 0.9.3, but OpenSSL 0.9.5a or later if compatible with
1681 PH support is provided by Mark Roth <roth@uiuc.edu>. The map is
1682 described at http://www-dev.cites.uiuc.edu/sendmail/ .
1684 NOTE: The "spacedname" pseudo-field which was used by earlier
1685 versions of the PH map code is no longer supported! See the URL
1686 listed above for more information.
1688 Please contact Mark Roth for support and questions regarding the
1692 If you are using -DTCPWRAPPERS to get TCP Wrappers support you will
1693 also need to install libwrap.a and modify your site.config.m4 file
1694 or the generated Makefile to include -lwrap in the LIBS line
1695 (make sure that INCDIRS and LIBDIRS point to where the tcpd.h and
1696 libwrap.a can be found).
1698 TCP Wrappers is available at ftp://ftp.porcupine.org/pub/security/.
1700 If you have alternate MX sites for your site, be sure that all of
1701 your MX sites reject the same set of hosts. If not, a bad guy whom
1702 you reject will connect to your site, fail, and move on to the next
1703 MX site, which will accept the mail for you and forward it on to you.
1705 Regular Expressions (MAP_REGEX)
1706 If sendmail linking fails with:
1708 undefined reference to 'regcomp'
1710 or sendmail gives an error about a regular expression with:
1712 pattern-compile-error: : Operation not applicable
1714 Your libc does not include a running version of POSIX-regex. Use
1715 librx or regex.o from the GNU Free Software Foundation,
1716 ftp://ftp.gnu.org/pub/gnu/rx-?.?.tar.gz or
1717 ftp://ftp.gnu.org/pub/gnu/regex-?.?.tar.gz.
1718 You can also use the regex-lib by Henry Spencer,
1719 ftp://ftp.funet.fi/pub/languages/C/spencer/regex.shar.gz
1720 Make sure, your compiler reads regex.h from the distribution,
1721 not from /usr/include, otherwise sendmail will dump a core.
1723 Fedora Core 5, 64 bit version
1724 If the ld stage fails with undefined functions like
1725 __res_querydomain, __dn_expand
1726 then add these lines to devtools/Site/site.config.m4
1728 APPENDDEF(`confLIBDIRS', `-L/usr/lib64')
1729 APPENDDEF(`confINCDIRS', `-I/usr/include/bind9')
1731 and rebuild (sh ./Build -c).
1733 Problem noted by Daniel Krones, solution suggested by
1740 The manual pages have been written against the -man macros, and
1741 should format correctly with any reasonable *roff.
1748 As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log
1749 some debugging output (logged at LOG_DEBUG severity). The
1750 information dumped is:
1752 * The value of the $j macro.
1753 * A warning if $j is not in the set $=w.
1754 * A list of the open file descriptors.
1755 * The contents of the connection cache.
1756 * If ruleset 89 is defined, it is evaluated and the results printed.
1758 This allows you to get information regarding the runtime state of the
1759 daemon on the fly. This should not be done too frequently, since
1760 the process of rewriting may lose memory which will not be recovered.
1761 Also, ruleset 89 may call non-reentrant routines, so there is a small
1762 non-zero probability that this will cause other problems. It is
1763 really only for debugging serious problems.
1765 A typical formulation of ruleset 89 would be:
1767 R$* $@ $>0 some test address
1770 +-----------------------------+
1771 | DESCRIPTION OF SOURCE FILES |
1772 +-----------------------------+
1774 The following list describes the files in this directory:
1776 Build Shell script for building sendmail.
1777 Makefile A convenience for calling ./Build.
1778 Makefile.m4 A template for constructing a makefile based on the
1779 information in the devtools directory.
1781 TRACEFLAGS My own personal list of the trace flags -- not guaranteed
1782 to be particularly up to date.
1783 alias.c Does name aliasing in all forms.
1784 aliases.5 Man page describing the format of the aliases file.
1785 arpadate.c A subroutine which creates ARPANET standard dates.
1786 bf.c Routines to implement memory-buffered file system using
1787 hooks provided by libsm now (formerly Torek stdio library).
1788 bf.h Buffered file I/O function declarations and
1789 data structure and function declarations for bf.c.
1790 collect.c The routine that actually reads the mail into a temp
1791 file. It also does a certain amount of parsing of
1793 conf.c The configuration file. This contains information
1794 that is presumed to be quite static and non-
1795 controversial, or code compiled in for efficiency
1796 reasons. Most of the configuration is in sendmail.cf.
1797 conf.h Configuration that must be known everywhere.
1798 control.c Routines to implement control socket.
1799 convtime.c A routine to sanely process times.
1800 daemon.c Routines to implement daemon mode.
1801 deliver.c Routines to deliver mail.
1802 domain.c Routines that interface with DNS (the Domain Name
1804 envelope.c Routines to manipulate the envelope structure.
1805 err.c Routines to print error messages.
1806 headers.c Routines to process message headers.
1807 helpfile An example helpfile for the SMTP HELP command and -bt mode.
1808 macro.c The macro expander. This is used internally to
1809 insert information from the configuration file.
1810 mailq.1 Man page for the mailq command.
1811 main.c The main routine to sendmail. This file also
1812 contains some miscellaneous routines.
1813 makesendmail A convenience for calling ./Build.
1814 map.c Support for database maps.
1815 mci.c Routines that handle mail connection information caching.
1816 milter.c MTA portions of the mail filter API.
1817 mime.c MIME conversion routines.
1818 newaliases.1 Man page for the newaliases command.
1819 parseaddr.c The routines which do address parsing.
1820 queue.c Routines to implement message queueing.
1821 readcf.c The routine that reads the configuration file and
1822 translates it to internal form.
1823 recipient.c Routines that manipulate the recipient list.
1824 sasl.c Routines to interact with Cyrys-SASL.
1825 savemail.c Routines which save the letter on processing errors.
1826 sendmail.8 Man page for the sendmail command.
1827 sendmail.h Main header file for sendmail.
1828 sfsasl.c I/O interface between SASL/TLS and the MTA.
1829 sfsasl.h Header file for sfsasl.c.
1830 shmticklib.c Routines for shared memory counters.
1831 sm_resolve.c Routines for DNS lookups (for DNS map type).
1832 sm_resolve.h Header file for sm_resolve.c.
1833 srvrsmtp.c Routines to implement server SMTP.
1834 stab.c Routines to manage the symbol table.
1835 stats.c Routines to collect and post the statistics.
1836 statusd_shm.h Data structure and function declarations for shmticklib.c.
1837 sysexits.c List of error messages associated with error codes
1839 sysexits.h List of error codes for systems that lack their own.
1840 timers.c Routines to provide microtimers.
1841 timers.h Data structure and function declarations for timers.h.
1842 tls.c Routines for TLS.
1843 trace.c The trace package. These routines allow setting and
1844 testing of trace flags with a high granularity.
1845 udb.c The user database interface module.
1846 usersmtp.c Routines to implement user SMTP.
1847 util.c Some general purpose routines used by sendmail.
1848 version.c The version number and information about this
1849 version of sendmail.
1851 (Version $Revision: 8.392 $, last update $Date: 2009/04/10 17:49:19 $ )
projects / dragonfly.git / blob