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 8.389 2006/05/02 16:58:50 ca 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.
41 By far, the easiest way to compile sendmail is to use the "Build"
46 This uses the "uname" command to figure out what architecture you are
47 on and creates a proper Makefile accordingly. It also creates a
48 subdirectory per object format, so that multiarchitecture support is
49 easy. In general this should be all you need. IRIX 6.x users should
50 read the note below in the OPERATING SYSTEM AND COMPILE QUIRKS section.
52 If you need to look at other include or library directories, use the
53 -I or -L flags on the command line, e.g.,
55 sh Build -I/usr/sww/include -L/usr/sww/lib
57 It's also possible to create local site configuration in the file
58 site.config.m4 (or another file settable with the -f flag). This
59 file contains M4 definitions for various compilation values; the
62 confMAPDEF -D flags to specify database types to be included
64 confENVDEF -D flags to specify other environment information
65 confINCDIRS -I flags for finding include files during compilation
66 confLIBDIRS -L flags for finding libraries during linking
67 confLIBS -l flags for selecting libraries during linking
68 confLDOPTS other ld(1) linker options
70 Others can be found by examining Makefile.m4. Please read
71 ../devtools/README for more information about the site.config.m4
74 You can recompile from scratch using the -c flag with the Build
75 command. This removes the existing compilation directory for the
76 current platform and builds a new one. The -c flag must also
77 be used if any site.*.m4 file in devtools/Site/ is changed.
79 Porting to a new Unix-based system should be a matter of creating
80 an appropriate configuration file in the devtools/OS/ directory.
83 +----------------------+
84 | DATABASE DEFINITIONS |
85 +----------------------+
87 There are several database formats that can be used for the alias files
88 and for general maps. When used for alias files they interact in an
89 attempt to be backward compatible.
93 NEWDB The new Berkeley DB package. Some systems (e.g., BSD/OS and
94 Digital UNIX 4.0) have some version of this package
95 pre-installed. If your system does not have Berkeley DB
96 pre-installed, or the version installed is not version 2.0
97 or greater (e.g., is Berkeley DB 1.85 or 1.86), get the
98 current version from http://www.sleepycat.com/. DO NOT
99 use a version from any of the University of California,
100 Berkeley "Net" or other distributions. If you are still
101 running BSD/386 1.x, you will need to upgrade the included
102 Berkeley DB library to a current version. NEWDB is included
103 automatically if the Build script can find a library named
105 See also OPERATING SYSTEM AND COMPILE QUIRKS about Berkeley
106 DB versions, e.g., DB 4.1.x.
107 NDBM The older NDBM implementation -- the very old V7 DBM
108 implementation is no longer supported.
109 NIS Network Information Services. To use this you must have
110 NIS support on your system.
111 NISPLUS NIS+ (the revised NIS released with Solaris 2). You must
112 have NIS+ support on your system to use this flag.
113 HESIOD Support for Hesiod (from the DEC/Athena distribution). You
114 must already have Hesiod support on your system for this to
115 work. You may be able to get this to work with the MIT/Athena
116 version of Hesiod, but that's likely to be a lot of work.
117 BIND 8.X also includes Hesiod support.
118 LDAPMAP Lightweight Directory Access Protocol support. You will
119 have to install the UMich or OpenLDAP
120 (http://www.openldap.org/) ldap and lber libraries to use
122 MAP_REGEX Regular Expression support. You will need to use an
123 operating system which comes with the POSIX regex()
124 routines or install a regexp library such as libregex from
125 the Free Software Foundation.
126 DNSMAP DNS map support. Requires NAMED_BIND.
127 PH_MAP PH map support. You will need the libphclient library from
128 the nph package (http://www-dev.cites.uiuc.edu/ph/nph/).
129 MAP_NSD nsd map support (IRIX 6.5 and later).
130 SOCKETMAP Support for a trivial query protocol over UNIX domain or TCP
133 >>> NOTE WELL for NEWDB support: If you want to get ndbm support, for
134 >>> Berkeley DB versions under 2.0, it is CRITICAL that you remove
135 >>> ndbm.o from libdb.a before you install it and DO NOT install ndbm.h;
136 >>> for Berkeley DB versions 2.0 through 2.3.14, remove dbm.o from libdb.a
137 >>> before you install it. If you don't delete these, there is absolutely
138 >>> no point to including -DNDBM, since it will just get you another
139 >>> (inferior) API to the same format database. These files OVERRIDE
140 >>> calls to ndbm routines -- in particular, if you leave ndbm.h in,
141 >>> you can find yourself using the new db package even if you don't
142 >>> define NEWDB. Berkeley DB versions later than 2.3.14 do not need
143 >>> to be modified. Please also consult the README in the top level
144 >>> directory of the sendmail distribution for other important information.
146 >>> Further note: DO NOT remove your existing /usr/include/ndbm.h --
147 >>> you need that one. But do not install an updated ndbm.h in
148 >>> /usr/include, /usr/local/include, or anywhere else.
150 If NEWDB and NDBM are defined (but not NIS), then sendmail will read
151 NDBM format alias files, but the next time a newaliases is run the
152 format will be converted to NEWDB; that format will be used forever
153 more. This is intended as a transition feature.
155 If NEWDB, NDBM, and NIS are all defined and the name of the file includes
156 the string "/yp/", sendmail will rebuild BOTH the NEWDB and NDBM format
157 alias files. However, it will only read the NEWDB file; the NDBM format
158 file is used only by the NIS subsystem. This is needed because the NIS
159 maps on an NIS server are built directly from the NDBM files.
161 If NDBM and NIS are defined (regardless of the definition of NEWDB),
162 and the filename includes the string "/yp/", sendmail adds the special
163 tokens "YP_LAST_MODIFIED" and "YP_MASTER_NAME", both of which are
164 required if the NDBM file is to be used as an NIS map.
166 All of these flags are normally defined in a confMAPDEF setting in your
169 If you define NEWDB or HESIOD you get the User Database (USERDB)
170 automatically. Generally you do want to have NEWDB for it to do
171 anything interesting. See above for getting the Berkeley DB
172 package (i.e., NEWDB). There is no separate "user database"
173 package -- don't bother searching for it on the net.
175 Hesiod and LDAP require libraries that may not be installed with your
176 system. These are outside of my ability to provide support. See the
177 "Quirks" section for more information.
179 The regex map can be used to see if an address matches a certain regular
180 expression. For example, all-numerics local parts are common spam
181 addresses, so "^[0-9]+$" would match this. By using such a map in a
182 check_* rule-set, you can block a certain range of addresses that would
183 otherwise be considered valid.
185 The socket map uses a simple request/reply protocol over TCP or
186 UNIX domain sockets to query an external server. Both requests and
187 replies are text based and encoded as netstrings. The socket map
188 uses the same syntax as milters the specify the remote endpoint,
191 Ksocket mySocketMap inet:12345@127.0.0.1
193 See doc/op/op.me for details.
199 Wherever possible, I try to make sendmail pull in the correct
200 compilation options needed to compile on various environments based on
201 automatically defined symbols. Some machines don't seem to have useful
202 symbols available, requiring that a compilation flag be defined in
203 the Makefile; see the devtools/OS subdirectory for the supported
206 If you are a system to which sendmail has already been ported you
207 should not have to touch the following symbols. But if you are porting,
208 you may have to tweak the following compilation flags in conf.h in order
209 to get it to compile and link properly:
211 SYSTEM5 Adjust for System V (not necessarily Release 4).
212 SYS5SIGNALS Use System V signal semantics -- the signal handler
213 is automatically dropped when the signal is caught.
214 If this is not set, use POSIX/BSD semantics, where the
215 signal handler stays in force until an exec or an
216 explicit delete. Implied by SYSTEM5.
217 SYS5SETPGRP Use System V setpgrp() semantics. Implied by SYSTEM5.
218 HASNICE Define this to zero if you lack the nice(2) system call.
219 HASRRESVPORT Define this to zero if you lack the rresvport(3) system call.
220 HASFCHMOD Define this to one if you have the fchmod(2) system call.
221 This improves security.
222 HASFCHOWN Define this to one if you have the fchown(2) system call.
223 This is required for the TrustedUser option if sendmail
224 must rebuild an (alias) map.
225 HASFLOCK Set this if you prefer to use the flock(2) system call
226 rather than using fcntl-based locking. Fcntl locking
227 has some semantic gotchas, but many vendor systems
228 also interface it to lockd(8) to do NFS-style locking.
229 Unfortunately, may vendors implementations of fcntl locking
230 is just plain broken (e.g., locks are never released,
231 causing your sendmail to deadlock; when the kernel runs
232 out of locks your system crashes). For this reason, I
233 recommend always defining this unless you are absolutely
234 certain that your fcntl locking implementation really works.
235 HASUNAME Set if you have the "uname" system call. Implied by
237 HASUNSETENV Define this if your system library has the "unsetenv"
239 HASSETSID Define this if you have the setsid(2) system call. This
240 is implied if your system appears to be POSIX compliant.
241 HASINITGROUPS Define this if you have the initgroups(3) routine.
242 HASSETVBUF Define this if you have the setvbuf(3) library call.
243 If you don't, setlinebuf will be used instead. This
244 defaults on if your compiler defines __STDC__.
245 HASSETREUID Define this if you have setreuid(2) ***AND*** root can
246 use setreuid to change to an arbitrary user. This second
247 condition is not satisfied on AIX 3.x. You may find that
248 your system has setresuid(2), (for example, on HP-UX) in
249 which case you will also have to #define setreuid(r, e)
250 to be the appropriate call. Some systems (such as Solaris)
251 have a compatibility routine that doesn't work properly,
252 but may have "saved user ids" properly implemented so you
253 can ``#define setreuid(r, e) seteuid(e)'' and have it work.
254 The important thing is that you have a call that will set
255 the effective uid independently of the real or saved uid
256 and be able to set the effective uid back again when done.
257 There's a test program in ../test/t_setreuid.c that will
258 try things on your system. Setting this improves the
259 security, since sendmail doesn't have to read .forward
260 and :include: files as root. There are certain attacks
261 that may be unpreventable without this call.
262 USESETEUID Define this to 1 if you have a seteuid(2) system call that
263 will allow root to set only the effective user id to an
264 arbitrary value ***AND*** you have saved user ids. This is
265 preferable to HASSETREUID if these conditions are fulfilled.
266 These are the semantics of the to-be-released revision of
267 Posix.1. The test program ../test/t_seteuid.c will try
268 this out on your system. If you define both HASSETREUID
269 and USESETEUID, the former is ignored.
270 HASSETEGID Define this if you have setegid(2) and it can be
271 used to set the saved gid. Please run t_dropgid in
272 test/ if you are not sure whether the call works.
273 HASSETREGID Define this if you have setregid(2) and it can be
274 used to set the saved gid. Please run t_dropgid in
275 test/ if you are not sure whether the call works.
276 HASSETRESGID Define this if you have setresgid(2) and it can be
277 used to set the saved gid. Please run t_dropgid in
278 test/ if you are not sure whether the call works.
279 HASLSTAT Define this if you have symbolic links (and thus the
280 lstat(2) system call). This improves security. Unlike
281 most other options, this one is on by default, so you
282 need to #undef it in conf.h if you don't have symbolic
283 links (these days everyone does).
284 HASSETRLIMIT Define this to 1 if you have the setrlimit(2) syscall.
285 You can define it to 0 to force it off. It is assumed
286 if you are running a BSD-like system.
287 HASULIMIT Define this if you have the ulimit(2) syscall (System V
288 style systems). HASSETRLIMIT overrides, as it is more
290 HASWAITPID Define this if you have the waitpid(2) syscall.
292 Define this if you have the getdtablesize(2) syscall.
293 HAS_ST_GEN Define this to 1 if your system has the st_gen field in
294 the stat structure (see stat(2)).
295 HASSRANDOMDEV Define this if your system has the srandomdev(3) function
297 HASURANDOMDEV Define this if your system has /dev/urandom(4).
298 HASSTRERROR Define this if you have the libc strerror(3) function (which
299 should be declared in <errno.h>), and it should be used
300 instead of sys_errlist.
301 HASCLOSEFROM Define this if your system has closefrom(3).
302 HASFDWALK Define this if your system has fdwalk(3).
303 SM_CONF_GETOPT Define this as 0 if you need a reimplementation of getopt(3).
304 On some systems, getopt does very odd things if called
305 to scan the arguments twice. This flag will ask sendmail
306 to compile in a local version of getopt that works
307 properly. You may also need this if you build with
308 another library that introduces a non-standard getopt(3).
309 NEEDSTRTOL Define this if your standard C library does not define
310 strtol(3). This will compile in a local version.
311 NEEDFSYNC Define this if your standard C library does not define
312 fsync(2). This will try to simulate the operation using
313 fcntl(2); if that is not available it does nothing, which
314 isn't great, but at least it compiles and runs.
315 HASGETUSERSHELL Define this to 1 if you have getusershell(3) in your
316 standard C library. If this is not defined, or is defined
317 to be 0, sendmail will scan the /etc/shells file (no
318 NIS-style support, defaults to /bin/sh and /bin/csh if
319 that file does not exist) to get a list of unrestricted
320 user shells. This is used to determine whether users
321 are allowed to forward their mail to a program or a file.
322 NEEDPUTENV Define this if your system needs am emulation of the
323 putenv(3) call. Define to 1 to implement it in terms
324 of setenv(3) or to 2 to do it in terms of primitives.
325 NOFTRUNCATE Define this if you don't have the ftruncate(2) syscall.
326 If you don't have this system call, there is an unavoidable
327 race condition that occurs when creating alias databases.
328 GIDSET_T The type of entries in a gidset passed as the second
329 argument to getgroups(2). Historically this has been an
330 int, so this is the default, but some systems (such as
331 IRIX) pass it as a gid_t, which is an unsigned short.
332 This will make a difference, so it is important to get
333 this right! However, it is only an issue if you have
335 SLEEP_T The type returned by the system sleep() function.
336 Defaults to "unsigned int". Don't worry about this
337 if you don't have compilation problems.
338 ARBPTR_T The type of an arbitrary pointer -- defaults to "void *".
339 If you are an very old compiler you may need to define
341 SOCKADDR_LEN_T The type used for the third parameter to accept(2),
342 getsockname(2), and getpeername(2), representing the
343 length of a struct sockaddr. Defaults to int.
344 SOCKOPT_LEN_T The type used for the fifth parameter to getsockopt(2)
345 and setsockopt(2), representing the length of the option
346 buffer. Defaults to int.
347 LA_TYPE The type of load average your kernel supports. These
349 LA_ZERO (1) -- it always returns the load average as
350 "zero" (and does so on all architectures).
351 LA_INT (2) to read /dev/kmem for the symbol avenrun and
352 interpret as a long integer.
353 LA_FLOAT (3) same, but interpret the result as a floating
355 LA_SHORT (6) to interpret as a short integer.
356 LA_SUBR (4) if you have the getloadavg(3) routine in your
358 LA_MACH (5) to use MACH-style load averages (calls
359 processor_set_info()),
360 LA_PROCSTR (7) to read /proc/loadavg and interpret it
361 as a string representing a floating-point
362 number (Linux-style).
363 LA_READKSYM (8) is an implementation suitable for some
364 versions of SVr4 that uses the MIOC_READKSYM ioctl
365 call to read /dev/kmem.
366 LA_DGUX (9) is a special implementation for DG/UX that uses
367 the dg_sys_info system call.
368 LA_HPUX (10) is an HP-UX specific version that uses the
369 pstat_getdynamic system call.
370 LA_IRIX6 (11) is an IRIX 6.x specific version that adapts
371 to 32 or 64 bit kernels; it is otherwise very similar
373 LA_KSTAT (12) uses the (Solaris-specific) kstat(3k)
375 LA_DEVSHORT (13) reads a short from a system file (default:
376 /dev/table/avenrun) and scales it in the same manner
378 LA_LONGLONG (17) to read /dev/kmem for the symbol avenrun and
379 interpret as a long long integer (e.g., for 64 bit
381 LA_INT, LA_SHORT, LA_FLOAT, and LA_READKSYM have several
382 other parameters that they try to divine: the name of your
383 kernel, the name of the variable in the kernel to examine,
384 the number of bits of precision in a fixed point load average,
385 and so forth. LA_DEVSHORT uses _PATH_AVENRUN to find the
386 device to be read to find the load average.
387 In desperation, use LA_ZERO. The actual code is in
388 conf.c -- it can be tweaked if you are brave.
389 FSHIFT For LA_INT, LA_SHORT, and LA_READKSYM, this is the number
390 of bits of load average after the binary point -- i.e.,
391 the number of bits to shift right in order to scale the
392 integer to get the true integer load average. Defaults to 8.
393 _PATH_UNIX The path to your kernel. Needed only for LA_INT, LA_SHORT,
394 and LA_FLOAT. Defaults to "/unix" on System V, "/vmunix"
396 LA_AVENRUN For LA_INT, LA_SHORT, and LA_FLOAT, the name of the kernel
397 variable that holds the load average. Defaults to "avenrun"
398 on System V, "_avenrun" everywhere else.
399 SFS_TYPE Encodes how your kernel can locate the amount of free
400 space on a disk partition. This can be set to SFS_NONE
401 (0) if you have no way of getting this information,
402 SFS_USTAT (1) if you have the ustat(2) system call,
403 SFS_4ARGS (2) if you have a four-argument statfs(2)
404 system call (and the include file is <sys/statfs.h>),
405 SFS_VFS (3), SFS_MOUNT (4), SFS_STATFS (5) if you have
406 the two-argument statfs(2) system call with includes in
407 <sys/vfs.h>, <sys/mount.h>, or <sys/statfs.h> respectively,
408 or SFS_STATVFS (6) if you have the two-argument statvfs(2)
409 call. The default if nothing is defined is SFS_NONE.
410 SFS_BAVAIL with SFS_4ARGS you can also set SFS_BAVAIL to the field name
411 in the statfs structure that holds the useful information;
412 this defaults to f_bavail.
413 SPT_TYPE Encodes how your system can display what a process is doing
414 on a ps(1) command (SPT stands for Set Process Title). Can
416 SPT_NONE (0) -- Don't try to set the process title at all.
417 SPT_REUSEARGV (1) -- Pad out your argv with the information;
418 this is the default if none specified.
419 SPT_BUILTIN (2) -- The system library has setproctitle.
420 SPT_PSTAT (3) -- Use the PSTAT_SETCMD option to pstat(2)
421 to set the process title; this is used by HP-UX.
422 SPT_PSSTRINGS (4) -- Use the magic PS_STRINGS pointer (4.4BSD).
423 SPT_SYSMIPS (5) -- Use sysmips() supported by NEWS-OS 6.
424 SPT_SCO (6) -- Write kernel u. area.
425 SPT_CHANGEARGV (7) -- Write pointers to our own strings into
426 the existing argv vector.
427 SPT_PADCHAR Character used to pad the process title; if undefined,
428 the space character (0x20) is used. This is ignored if
429 SPT_TYPE != SPT_REUSEARGV
431 If set, assumes that some header file defines sys_errlist.
432 This may be needed if you get type conflicts on this
433 variable -- otherwise don't worry about it.
434 WAITUNION The wait(2) routine takes a "union wait" argument instead
435 of an integer argument. This is for compatibility with
437 SCANF You can set this to extend the F command to accept a
438 scanf string -- this gives you a primitive parser for
439 class definitions -- BUT it can make you vulnerable to
440 core dumps if the target file is poorly formed.
441 SYSLOG_BUFSIZE You can define this to be the size of the buffer that
442 syslog accepts. If it is not defined, it assumes a
443 1024-byte buffer. If the buffer is very small (under
444 256 bytes) the log message format changes -- each
445 e-mail message will log many more messages, since it
446 will log each piece of information as a separate line
449 On Ultrix (and maybe other systems?) if you use the
450 res_search routine with an unknown host name, it returns
451 -1 but sets h_errno to 0 instead of HOST_NOT_FOUND. If
452 you set this, sendmail considers 0 to be the same as
454 NAMELISTMASK If defined, values returned by nlist(3) are masked
455 against this value before use -- a common value is
456 0x7fffffff to strip off the top bit.
457 BSD4_4_SOCKADDR If defined, socket addresses have an sa_len field that
458 defines the length of this address.
459 SAFENFSPATHCONF Set this to 1 if and only if you have verified that a
460 pathconf(2) call with _PC_CHOWN_RESTRICTED argument on an
461 NFS filesystem where the underlying system allows users to
462 give away files to other users returns <= 0. Be sure you
463 try both on NFS V2 and V3. Some systems assume that their
464 local policy apply to NFS servers -- this is a bad
465 assumption! The test/t_pathconf.c program will try this
466 for you -- you have to run it in a directory that is
467 mounted from a server that allows file giveaway.
468 SIOCGIFCONF_IS_BROKEN
469 Set this if your system has an SIOCGIFCONF ioctl defined,
470 but it doesn't behave the same way as "most" systems (BSD,
471 Solaris, SunOS, HP-UX, etc.)
473 Set this if your system has an SIOCGIFNUM ioctl defined,
474 but it doesn't behave the same way as "most" systems
477 Set this if your system can reuse the same PID in the same
479 SO_REUSEADDR_IS_BROKEN
480 Set this if your system has a setsockopt() SO_REUSEADDR
481 flag but doesn't pay attention to it when trying to bind a
482 socket to a recently closed port.
483 NEEDSGETIPNODE Set this if your system supports IPv6 but doesn't include
484 the getipnodeby{name,addr}() functions. Set automatically
486 PIPELINING Support SMTP PIPELINING (set by default).
488 Deprecated in favor of SM_CONF_LDAP_MEMFREE. See
490 NEEDLINK Set this if your system doesn't have a link() call. It
491 will create a copy of the file instead of a hardlink.
492 USE_ENVIRON Set this to 1 to access process environment variables from
493 the external variable environ instead of the third
495 USE_DOUBLE_FORK By default this is on (1). Set it to 0 to suppress the
496 extra fork() used to avoid intermediate zombies.
497 ALLOW_255 Do not convert (char)0xff to (char)0x7f in headers etc.
498 This can also be done at runtime with the command line
500 NEEDINTERRNO Set this if <errno.h> does not declare errno, i.e., if an
501 application needs to use
503 USE_TTYPATH Set this to 1 to enable ErrorMode=write.
504 USESYSCTL Use sysctl(3) to determine the number of CPUs in a system.
505 HASSNPRINTF Set this to 1 if your OS has a working snprintf(3), i.e.,
506 it properly obeys the size of the buffer and returns the
507 number of characters that would have been printed if the
509 LDAP_REFERRALS Set this if you want to use the -R flag (do not auto chase
510 referrals) for LDAP maps (requires -DLDAPMAP).
513 +-----------------------+
514 | COMPILE-TIME FEATURES |
515 +-----------------------+
517 There are a bunch of features that you can decide to compile in, such
518 as selecting various database packages and special protocol support.
519 Several are assumed based on other compilation flags -- if you want to
520 "un-assume" something, you probably need to edit conf.h. Compilation
521 flags that add support for special features include:
523 NDBM Include support for "new" DBM library for aliases and maps.
524 Normally defined in the Makefile.
525 NEWDB Include support for Berkeley DB package (hash & btree)
526 for aliases and maps. Normally defined in the Makefile.
527 If the version of NEWDB you have is the old one that does
528 not include the "fd" call (this call was added in version
529 1.5 of the Berkeley DB code), you must upgrade to the
530 current version of Berkeley DB.
531 NIS Define this to get NIS (YP) support for aliases and maps.
532 Normally defined in the Makefile.
533 NISPLUS Define this to get NIS+ support for aliases and maps.
534 Normally defined in the Makefile.
535 HESIOD Define this to get Hesiod support for aliases and maps.
536 Normally defined in the Makefile.
537 NETINFO Define this to get NeXT NetInfo support for aliases and maps.
538 Normally defined in the Makefile.
539 LDAPMAP Define this to get LDAP support for maps.
540 PH_MAP Define this to get PH support for maps.
541 MAP_NSD Define this to get nsd support for maps.
542 USERDB Define this to 1 to include support for the User Information
543 Database. Implied by NEWDB or HESIOD. You can use
544 -DUSERDB=0 to explicitly turn it off.
545 IDENTPROTO Define this as 1 to get IDENT (RFC 1413) protocol support.
546 This is assumed unless you are running on Ultrix or
547 HP-UX, both of which have a problem in the UDP
548 implementation. You can define it to be 0 to explicitly
549 turn off IDENT protocol support. If defined off, the code
550 is actually still compiled in, but it defaults off; you
551 can turn it on by setting the IDENT timeout in the
553 IP_SRCROUTE Define this to 1 to get IP source routing information
554 displayed in the Received: header. This is assumed on
555 most systems, but some (e.g., Ultrix) apparently have a
556 broken version of getsockopt that doesn't properly
557 support the IP_OPTIONS call. You probably want this if
558 your OS can cope with it. Symptoms of failure will be that
559 it won't compile properly (that is, no support for fetching
560 IP_OPTIONs), or it compiles but source-routed TCP connections
561 either refuse to open or open and hang for no apparent reason.
562 Ultrix and AIX3 are known to fail this way.
563 LOG Set this to get syslog(3) support. Defined by default
564 in conf.h. You want this if at all possible.
565 NETINET Set this to get TCP/IP support. Defined by default
566 in conf.h. You probably want this.
567 NETINET6 Set this to get IPv6 support. Other configuration may
568 be needed in conf.h for your particular operating system.
569 Also, DaemonPortOptions must be set appropriately for
570 sendmail to accept IPv6 connections.
571 NETISO Define this to get ISO networking support.
572 NETUNIX Define this to get Unix domain networking support. Defined
573 by default. A few bizarre systems (SCO, ISC, Altos) don't
574 support this networking domain.
575 NETNS Define this to get NS networking support.
576 NETX25 Define this to get X.25 networking support.
577 NAMED_BIND If non-zero, include DNS (name daemon) support, including
578 MX support. The specs say you must use this if you run
579 SMTP. You don't have to be running a name server daemon
580 on your machine to need this -- any use of the DNS resolver,
581 including remote access to another machine, requires this
582 option. Defined by default in conf.h. Define it to zero
583 ONLY on machines that do not use DNS in any way.
584 MATCHGECOS Permit fuzzy matching of user names against the full
585 name (GECOS) field in the /etc/passwd file. This should
586 probably be on, since you can disable it from the config
587 file if you want to. Defined by default in conf.h.
588 MIME8TO7 If non-zero, include 8 to 7 bit MIME conversions. This
589 also controls advertisement of 8BITMIME in the ESMTP
591 MIME7TO8_OLD If 0 then use an algorithm for MIME 7-bit quoted-printable
592 or base64 encoding to 8-bit text that has been introduced
593 in 8.12.3. There are some examples where that code fails,
594 but the old code works. If you have an example of improper
595 7 to 8 bit conversion please send it to sendmail-bugs.
596 MIME7TO8 If non-zero, include 7 to 8 bit MIME conversions.
597 HES_GETMAILHOST Define this to 1 if you are using Hesiod with the
598 hes_getmailhost() routine. This is included with the MIT
599 Hesiod distribution, but not with the DEC Hesiod distribution.
600 XDEBUG Do additional internal checking. These don't cost too
601 much; you might as well leave this on.
602 TCPWRAPPERS Turns on support for the TCP wrappers library (-lwrap).
603 See below for further information.
604 SECUREWARE Enable calls to the SecureWare luid enabling/changing routines.
605 SecureWare is a C2 security package added to several UNIX's
606 (notably ConvexOS) to get a C2 Secure system. This
607 option causes mail delivery to be done with the luid of the
609 SHARE_V1 Support for the fair share scheduler, version 1. Setting to
610 1 causes final delivery to be done using the recipients
611 resource limitations. So far as I know, this is only
612 supported on ConvexOS.
613 SASL Enables SMTP AUTH (RFC 2554). This requires the Cyrus SASL
614 library (ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/). Please
615 install at least version 1.5.13. See below for further
616 information: SASL COMPILATION AND CONFIGURATION. If your
617 SASL library is older than 1.5.10, you have to set this
618 to its version number using a simple conversion: a.b.c
619 -> c + b*100 + a*10000, e.g. for 1.5.9 define SASL=10509.
620 Note: Using an older version than 1.5.5 of Cyrus SASL is
621 not supported. Starting with version 1.5.10, setting SASL=1
622 is sufficient. Any value other than 1 (or 0) will be
623 compared with the actual version found and if there is a
624 mismatch, compilation will fail.
625 EGD Define this if your system has EGD installed, see
626 http://egd.sourceforge.net/ . It should be used to
627 seed the PRNG for STARTTLS if HASURANDOMDEV is not defined.
628 STARTTLS Enables SMTP STARTTLS (RFC 2487). This requires OpenSSL
629 (http://www.OpenSSL.org/); use OpenSSL 0.9.5a or later
630 (if compatible with this version), do not use 0.9.3.
631 See STARTTLS COMPILATION AND CONFIGURATION for further
633 TLS_NO_RSA Turn off support for RSA algorithms in STARTTLS.
634 MILTER Turn on support for external filters using the Milter API;
635 this option is set by default, to turn it off use
636 APPENDDEF(`conf_sendmail_ENVDEF', `-DMILTER=0')
637 in devtools/Site/site.config.m4 (see devtools/README).
638 See libmilter/README for more information about milter.
639 REQUIRES_DIR_FSYNC Turn on support for file systems that require to
640 call fsync() for a directory if the meta-data in it has
641 been changed. This should be turned on at least for older
642 versions of ReiserFS; it is enabled by default for Linux.
643 According to some information this flag is not needed
644 anymore for kernel 2.4.16 and newer. We would appreciate
645 feedback about the semantics of the various file systems
647 An alternative to this compile time flag is to mount the
648 queue directory without the -async option, or using
650 DBMMODE The default file permissions to use when creating new
651 database files for maps and aliases. Defaults to 0640.
653 Generic notice: If you enable a compile time option that needs
654 libraries or include files that don't come with sendmail or are
655 installed in a location that your C compiler doesn't use by default
656 you should set confINCDIRS and confLIBDIRS as explained in the
657 first section: BUILDING SENDMAIL.
660 +---------------------+
661 | DNS/RESOLVER ISSUES |
662 +---------------------+
664 Many systems have old versions of the resolver library. At a minimum,
665 you should be running BIND 4.8.3; older versions may compile, but they
666 have known bugs that should give you pause.
668 Common problems in old versions include "undefined" errors for
671 Some people have had a problem with BIND 4.9; it uses some routines
672 that it expects to be externally defined such as strerror(). It may
673 help to link with "-l44bsd" to solve this problem. This has apparently
674 been fixed in later versions of BIND, starting around 4.9.3. In other
675 words, if you use 4.9.0 through 4.9.2, you need -l44bsd; for earlier or
676 later versions, you do not.
678 !PLEASE! be sure to link with the same version of the resolver as
679 the header files you used -- some people have used the 4.9 headers
680 and linked with BIND 4.8 or vice versa, and it doesn't work.
681 Unfortunately, it doesn't fail in an obvious way -- things just
684 WILDCARD MX RECORDS ARE A BAD IDEA! The only situation in which they
685 work reliably is if you have two versions of DNS, one in the real world
686 which has a wildcard pointing to your firewall, and a completely
687 different version of the database internally that does not include
688 wildcard MX records that match your domain. ANYTHING ELSE WILL GIVE
691 When attempting to canonify a hostname, some broken name servers will
692 return SERVFAIL (a temporary failure) on T_AAAA (IPv6) lookups. If you
693 want to excuse this behavior, include WorkAroundBrokenAAAA in
694 ResolverOptions. However, instead, we recommend catching the problem and
695 reporting it to the name server administrator so we can rid the world of
699 +----------------------------------------+
700 | STARTTLS COMPILATION AND CONFIGURATION |
701 +----------------------------------------+
703 Please read the documentation accompanying the OpenSSL library. You
704 have to compile and install the OpenSSL libraries before you can compile
705 sendmail. See devtools/README how to set the correct compile time
706 parameters; you should at least set the following variables:
708 APPENDDEF(`conf_sendmail_ENVDEF', `-DSTARTTLS')
709 APPENDDEF(`conf_sendmail_LIBS', `-lssl -lcrypto')
711 If you have installed the OpenSSL libraries and include files in
712 a location that your C compiler doesn't use by default you should
713 set confINCDIRS and confLIBDIRS as explained in the first section:
716 Configuration information can be found in doc/op/op.me (required
717 certificates) and cf/README (how to tell sendmail about certificates).
719 To perform an initial test, connect to your sendmail daemon
720 (telnet localhost 25) and issue a EHLO localhost and see whether
722 is in the response. If it isn't, run the daemon with
724 and try again. Then take a look at the logfile and see whether
725 there are any problems listed about permissions (unsafe files)
726 or the validity of X.509 certificates.
728 From: Garrett Wollman <wollman@lcs.mit.edu>
730 If your certificate authority is hierarchical, and you only include
731 the top-level CA certificate in the CACertFile file, some mail clients
732 may be unable to infer the proper certificate chain when selecting a
733 client certificate. Including the bottom-level CA certificate(s) in
734 the CACertFile file will allow these clients to work properly. This
735 is not necessary if you are not using client certificates for
736 authentication, or if all your clients are running Sendmail or other
737 programs using the OpenSSL library (which get it right automatically).
738 In addition, some mail clients are totally incapable of using
739 certificate authentication -- even some of those which already support
740 SSL/TLS for confidentiality.
742 Further information can be found via:
743 http://www.sendmail.org/tips/
746 +------------------------------------+
747 | SASL COMPILATION AND CONFIGURATION |
748 +------------------------------------+
750 Please read the documentation accompanying the Cyrus SASL library
751 (INSTALL and README). If you use Berkeley DB for Cyrus SASL then
752 you must compile sendmail with the same version of Berkeley DB.
753 See devtools/README for how to set the correct compile time parameters;
754 you should at least set the following variables:
756 APPENDDEF(`conf_sendmail_ENVDEF', `-DSASL')
757 APPENDDEF(`conf_sendmail_LIBS', `-lsasl')
759 If you have installed the Cyrus SASL library and include files in
760 a location that your C compiler doesn't use by default you should
761 set confINCDIRS and confLIBDIRS as explained in the first section:
764 You have to select and install authentication mechanisms and tell
765 sendmail where to find the sasl library and the include files (see
766 devtools/README for the parameters to set). Set up the required
767 users and passwords as explained in the SASL documentation. See
768 also cf/README for authentication related options (especially
769 DefaultAuthInfo if you want authentication between MTAs).
771 To perform an initial test, connect to your sendmail daemon
772 (telnet localhost 25) and issue a EHLO localhost and see whether
774 is in the response. If it isn't, run the daemon with
776 and try again. Then take a look at the logfile and see whether
777 there are any security related problems listed (unsafe files).
779 Further information can be found via:
780 http://www.sendmail.org/tips/
783 +-------------------------------------+
784 | OPERATING SYSTEM AND COMPILE QUIRKS |
785 +-------------------------------------+
788 When compiling with "gcc -O -Wall" specify "-DSM_OMIT_BOGUS_WARNINGS"
789 too (see include/sm/cdefs.h for more info).
791 *****************************************************************
792 ** IMPORTANT: DO NOT USE OPTIMIZATION (``-O'') IF YOU ARE **
793 ** RUNNING GCC 2.4.x or 2.5.x. THERE IS A BUG IN THE GCC **
794 ** OPTIMIZER THAT CAUSES SENDMAIL COMPILES TO FAIL MISERABLY. **
795 *****************************************************************
797 Jim Wilson of Cygnus believes he has found the problem -- it will
798 probably be fixed in GCC 2.5.6 -- but until this is verified, be
799 very suspicious of gcc -O. This problem is reported to have been
802 A bug in gcc 2.5.5 caused problems compiling sendmail 8.6.5 with
803 optimization on a Sparc. If you are using gcc 2.5.5, youi should
804 upgrade to the latest version of gcc.
806 Apparently GCC 2.7.0 on the Pentium processor has optimization
807 problems. I recommend against using -O on that architecture. This
808 has been seen on FreeBSD 2.0.5 RELEASE.
810 Solaris 2.X users should use version 2.7.2.3 over 2.7.2.
812 We have been told there are problems with gcc 2.8.0. If you are
813 using this version, you should upgrade to 2.8.1 or later.
816 Berkeley DB 4.1.x with x <= 24 does not work with sendmail.
817 You need at least 4.1.25.
819 GDBM GDBM does not work with sendmail because the additional
820 security checks and file locking cause problems. Unfortunately,
821 gdbm does not provide a compile flag in its version of ndbm.h so
822 the code can adapt. Until the GDBM authors can fix these problems,
823 GDBM will not be supported. Please use Berkeley DB instead.
825 Configuration file location
826 Up to 8.6, sendmail tried to find the sendmail.cf file in the same
827 place as the vendors had put it, even when this was obviously
828 stupid. As of 8.7, sendmail ALWAYS looks for /etc/sendmail.cf.
829 Beginning with 8.10, sendmail uses /etc/mail/sendmail.cf.
830 You can get sendmail to use the stupid vendor .cf location by
831 adding -DUSE_VENDOR_CF_PATH during compilation, but this may break
832 support programs and scripts that need to find sendmail.cf. You
833 are STRONGLY urged to use symbolic links if you want to use the
834 vendor location rather than changing the location in the sendmail
837 NETINFO systems use NETINFO to determine the location of
838 sendmail.cf. The full path to sendmail.cf is stored as the value of
839 the "sendmail.cf" property in the "/locations/sendmail"
840 subdirectory of NETINFO. Set the value of this property to
841 "/etc/mail/sendmail.cf" (without the quotes) to use this new
842 default location for Sendmail 8.10.0 and higher.
844 ControlSocket permissions
845 Paraphrased from BIND 8.2.1's README:
847 Solaris and other pre-4.4BSD kernels do not respect ownership or
848 protections on UNIX-domain sockets. The short term fix for this is to
849 override the default path and put such control sockets into root-
850 owned directories which do not permit non-root to r/w/x through them.
851 The long term fix is for all kernels to upgrade to 4.4BSD semantics.
854 The MPE-specific code within sendmail emulates a set-user-id root
855 environment for the sendmail binary. But there is no root uid 0 on
856 MPE, nor is there any support for set-user-id programs. Even when
857 sendmail thinks it is running as uid 0, it will still have the file
858 access rights of the underlying non-zero uid, but because sendmail is
859 an MPE priv-mode program it will still be able to call setuid() to
860 successfully switch to a new uid.
862 MPE setgid() semantics don't quite work the way sendmail expects, so
863 special emulation is done here also.
865 This uid/gid emulation is enabled via the setuid/setgid file mode bits
866 which are not currently used by MPE. Code in libsm/mpeix.c examines
867 these bits and enables emulation if they have been set, i.e.,
868 chmod u+s,g+s /SENDMAIL/CURRENT/SENDMAIL.
870 SunOS 4.x (Solaris 1.x)
871 You may have to use -lresolv on SunOS. However, beware that
872 this links in a new version of gethostbyname that does not
873 understand NIS, so you must have all of your hosts in DNS.
875 Some people have reported problems with the SunOS version of
876 -lresolv and/or in.named, and suggest that you get a newer
877 version. The symptoms are delays when you connect to the
878 SMTP server on a SunOS machine or having your domain added to
879 addresses inappropriately. There is a version of BIND
880 version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9.
882 There is substantial disagreement about whether you can make
883 this work with resolv+, which allows you to specify a search-path
884 of services. Some people report that it works fine, others
885 claim it doesn't work at all (including causing sendmail to
886 drop core when it tries to do multiple resolv+ lookups for a
887 single job). I haven't tried resolv+, as we use DNS exclusively.
889 Should you want to try resolv+, it is on ftp.uu.net in
892 Apparently getservbyname() can fail under moderate to high
893 load under some circumstances. This will exhibit itself as
894 the message ``554 makeconnection: service "smtp" unknown''.
895 The problem has been traced to one or more blank lines in
896 /etc/services on the NIS server machine. Delete these
897 and it should work. This info is thanks to Brian Bartholomew
898 <bb@math.ufl.edu> of I-Kinetics, Inc.
900 NOTE: The SunOS 4.X linker uses library paths specified during
901 compilation using -L for run-time shared library searches.
902 Therefore, it is vital that relative and unsafe directory paths not
903 be used when compiling sendmail.
905 SunOS 4.0.2 (Sun 386i)
906 Date: Fri, 25 Aug 1995 11:13:58 +0200 (MET DST)
909 Sendmail 8.7.Beta.12 compiles and runs nearly out of the box with the
911 * Don't use /usr/5bin in your PATH, but make /usr/5bin/uname
912 available as "uname" command.
913 * Use the defines "-DBSD4_3 -DNAMED_BIND=0" in
914 devtools/OS/SunOS.4.0, which is selected via the "uname" command.
915 I recommend to make available the db-library on the system first
916 (and change the Makefile to use this library).
917 Note that the sendmail.cf and aliases files are found in /etc.
919 SunOS 4.1.3, 4.1.3_U1
920 Sendmail causes crashes on SunOS 4.1.3 and 4.1.3_U1. According
921 to Sun bug number 1077939:
923 If an application does a getsockopt() on a SOCK_STREAM (TCP) socket
924 after the other side of the connection has sent a TCP RESET for
925 the stream, the kernel gets a Bus Trap in the tcp_ctloutput() or
926 ip_ctloutput() routine.
928 For 4.1.3, this is fixed in patch 100584-08, available on the
929 Sunsolve 2.7.1 or later CDs. For 4.1.3_U1, this was fixed in patch
930 101790-01 (SunOS 4.1.3_U1: TCP socket and reset problems), later
931 obsoleted by patch 102010-05.
933 Sun patch 100584-08 is not currently publicly available on their
934 ftp site but a user has reported it can be found at other sites
935 using a web search engine.
937 Solaris 2.x (SunOS 5.x)
938 To compile for Solaris, the Makefile built by Build must
939 include a SOLARIS definition which reflects the Solaris version
940 (i.e. -DSOLARIS=20400 for 2.4 or -DSOLARIS=20501 for 2.5.1).
941 If you are using gcc, make sure -I/usr/include is not used (or
942 it might complain about TopFrame). If you are using Sun's cc,
943 make sure /opt/SUNWspro/bin/cc is used instead of /usr/ucb/cc
944 (or it might complain about tm_zone).
946 The Solaris 2.x (x <= 3) "syslog" function is apparently limited
947 to something about 90 characters because of a kernel limitation.
948 If you have source code, you can probably up this number. You
949 can get patches that fix this problem: the patch ids are:
955 Be sure you have the appropriate patch installed or you won't
958 Solaris 2.4 (SunOS 5.4)
959 If you include /usr/lib at the end of your LD_LIBRARY_PATH you run
960 the risk of getting the wrong libraries under some circumstances.
961 This is because of a new feature in Solaris 2.4, described by
962 Rod.Evans@Eng.Sun.COM:
964 >> Prior to SunOS 5.4, any LD_LIBRARY_PATH setting was ignored by the
965 >> runtime linker if the application was setxid (secure), thus your
966 >> applications search path would be:
968 >> /usr/local/lib LD_LIBRARY_PATH component - IGNORED
969 >> /usr/lib LD_LIBRARY_PATH component - IGNORED
970 >> /usr/local/lib RPATH - honored
971 >> /usr/lib RPATH - honored
973 >> the effect is that path 3 would be the first used, and this would
974 >> satisfy your resolv.so lookup.
976 >> In SunOS 5.4 we made the LD_LIBRARY_PATH a little more flexible.
977 >> People who developed setxid applications wanted to be able to alter
978 >> the library search path to some degree to allow for their own
979 >> testing and debugging mechanisms. It was decided that the only
980 >> secure way to do this was to allow a `trusted' path to be used in
981 >> LD_LIBRARY_PATH. The only trusted directory we presently define
982 >> is /usr/lib. Thus a set-user-ID root developer could play with some
983 >> alternative shared object implementations and place them in
984 >> /usr/lib (being root we assume they'ed have access to write in this
985 >> directory). This change was made as part of 1155380 - after a
986 >> *huge* amount of discussion regarding the security aspect of things.
988 >> So, in SunOS 5.4 your applications search path would be:
990 >> /usr/local/lib from LD_LIBRARY_PATH - IGNORED (untrustworthy)
991 >> /usr/lib from LD_LIBRARY_PATH - honored (trustworthy)
992 >> /usr/local/lib from RPATH - honored
993 >> /usr/lib from RPATH - honored
995 >> here, path 2 would be the first used.
997 Solaris 2.5.1 (SunOS 5.5.1) and 2.6 (SunOS 5.6)
998 Apparently Solaris 2.5.1 patch 103663-01 installs a new
999 /usr/include/resolv.h file that defines the __P macro without
1000 checking to see if it is already defined. This new resolv.h is also
1001 included in the Solaris 2.6 distribution. This causes compile
1004 In file included from daemon.c:51:
1005 /usr/include/resolv.h:208: warning: `__P' redefined
1006 cdefs.h:58: warning: this is the location of the previous definition
1008 These warnings can be safely ignored or you can create a resolv.h
1009 file in the obj.SunOS.5.5.1.* or obj.SunOS.5.6.* directory that reads:
1012 #include "/usr/include/resolv.h"
1014 This problem was fixed in Solaris 7 (Sun bug ID 4081053).
1016 Solaris 7 (SunOS 5.7)
1017 Solaris 7 includes LDAP libraries but the implementation was
1018 lacking a few things. The following settings can be placed in
1019 devtools/Site/site.SunOS.5.7.m4 if you plan on using those
1022 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1023 APPENDDEF(`confENVDEF', `-DLDAP_VERSION_MAX=3')
1024 APPENDDEF(`confLIBS', `-lldap')
1026 Also, Sun's patch 107555 is needed to prevent a crash in the call
1027 to ldap_set_option for LDAP_OPT_REFERRALS in ldapmap_setopts if
1028 LDAP support is compiled in sendmail.
1030 Solaris 8 and later (SunOS 5.8 and later)
1031 Solaris 8 and later can optionally install LDAP support. If you
1032 have installed the Entire Distribution meta-cluster, you can use
1033 the following in devtools/Site/site.SunOS.5.8.m4 (or other
1034 appropriately versioned file) to enable LDAP:
1036 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1037 APPENDDEF(`confLIBS', `-lldap')
1039 Solaris 9 and later (SunOS 5.9 and later)
1040 Solaris 9 and later have a revised LDAP library, libldap.so.5,
1041 which is derived from a Netscape implementation, thus requiring
1042 that SM_CONF_LDAP_MEMFREE be defined in conjunction with LDAPMAP:
1044 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1045 APPENDDEF(`confENVDEF', `-DSM_CONF_LDAP_MEMFREE')
1046 APPENDDEF(`confLIBS', `-lldap')
1049 If you are using dns for hostname resolution on Solaris, make sure
1050 that the 'dns' entry is last on the hosts line in
1051 '/etc/nsswitch.conf'. For example, use:
1053 hosts: nisplus files dns
1057 hosts: nisplus dns [NOTFOUND=return] files
1059 Note that 'nisplus' above is an illustration. The same comment
1060 applies no matter what naming services you are using. If you have
1061 anything other than dns last, even after "[NOTFOUND=return]",
1062 sendmail may not be able to determine whether an error was
1063 temporary or permanent. The error returned by the solaris
1064 gethostbyname() is the error for the last lookup used, and other
1065 naming services do not have the same concept of temporary failure.
1068 By default, the IDENT protocol is turned off on Ultrix. If you
1069 are running Ultrix 4.4 or later, or if you have included patch
1070 CXO-8919 for Ultrix 4.2 or 4.3 to fix the TCP problem, you can turn
1071 IDENT on in the configuration file by setting the "ident" timeout.
1073 The Ultrix 4.5 Y2K patch (ULTV45-022-1) has changed the resolver
1074 included in libc.a. Unfortunately, the __RES symbol hasn't changed
1075 and therefore, sendmail can no longer automatically detect the
1076 newer version. If you get a compiler error:
1078 /lib/libc.a(gethostent.o): local_hostname_length: multiply defined
1080 Then rebuild with this in devtools/Site/site.ULTRIX.m4:
1082 APPENDDEF(`conf_sendmail_ENVDEF', `-DNEEDLOCAL_HOSTNAME_LENGTH=0')
1084 Digital UNIX (formerly DEC OSF/1)
1085 If you are compiling on OSF/1 (DEC Alpha), you must use
1086 -L/usr/shlib (otherwise it core dumps on startup). You may also
1087 need -mld to get the nlist() function, although some versions
1088 apparently don't need this.
1090 Also, the enclosed makefile removed /usr/sbin/smtpd; if you need
1091 it, just create the link to the sendmail binary.
1093 On DEC OSF/1 3.2 or earlier, the MatchGECOS option doesn't work
1094 properly due to a bug in the getpw* routines. If you want to use
1095 this, use -DDEC_OSF_BROKEN_GETPWENT=1. The problem is fixed in 3.2C.
1097 Digital's mail delivery agent, /bin/mail (aka /bin/binmail), will
1098 only preserve the envelope sender in the "From " header if
1099 DefaultUserID is set to daemon. Setting this to mailnull will
1100 cause all mail to have the header "From mailnull ...". To use
1101 a different DefaultUserID, you will need to use a different mail
1102 delivery agent (such as mail.local found in the sendmail
1105 On Digital UNIX 4.0 and later, Berkeley DB 1.85 is included with the
1106 operating system and already has the ndbm.o module removed. However,
1107 Digital has modified the original Berkeley DB db.h include file.
1108 This results in the following warning while compiling map.c and udb.c:
1110 cc: Warning: /usr/include/db.h, line 74: The redefinition of the macro
1111 "__signed" conflicts with a current definition because the replacement
1112 lists differ. The redefinition is now in effect.
1113 #define __signed signed
1114 ------------------------^
1116 This warning can be ignored.
1118 Digital UNIX's linker checks /usr/ccs/lib/ before /usr/lib/.
1119 If you have installed a new version of BIND in /usr/include
1120 and /usr/lib, you will experience difficulties as Digital ships
1121 libresolv.a in /usr/ccs/lib/ as well. Be sure to replace both
1122 copies of libresolv.a.
1125 The header files on SGI IRIX are completely prototyped, and as
1126 a result you can sometimes get some warning messages during
1127 compilation. These can be ignored. There are two errors in
1128 deliver only if you are using gcc, both of the form ``warning:
1129 passing arg N of `execve' from incompatible pointer type''.
1130 Also, if you compile with -DNIS, you will get a complaint
1131 about a declaration of struct dom_binding in a prototype
1132 when compiling map.c; this is not important because the
1133 function being prototyped is not used in that file.
1135 In order to compile sendmail you will have had to install
1136 the developers' option in order to get the necessary include
1139 If you compile with -lmalloc (the fast memory allocator), you may
1140 get warning messages such as the following:
1142 ld32: WARNING 85: definition of _calloc in /usr/lib32/libmalloc.so
1143 preempts that definition in /usr/lib32/mips3/libc.so.
1144 ld32: WARNING 85: definition of _malloc in /usr/lib32/libmalloc.so
1145 preempts that definition in /usr/lib32/mips3/libc.so.
1146 ld32: WARNING 85: definition of _realloc in /usr/lib32/libmalloc.so
1147 preempts that definition in /usr/lib32/mips3/libc.so.
1148 ld32: WARNING 85: definition of _free in /usr/lib32/libmalloc.so
1149 preempts that definition in /usr/lib32/mips3/libc.so.
1150 ld32: WARNING 85: definition of _cfree in /usr/lib32/libmalloc.so
1151 preempts that definition in /usr/lib32/mips3/libc.so.
1153 These are unavoidable and innocuous -- just ignore them.
1155 According to Dave Sill <de5@ornl.gov>, there is a version of the
1156 Berkeley DB library patched to run on Irix 6.2 available from
1157 http://reality.sgi.com/ariel/freeware/#db .
1160 If you are using XFS filesystem, avoid using the -32 ABI switch to
1161 the cc compiler if possible.
1163 Broken inet_aton and inet_ntoa on IRIX using gcc: There's
1164 a problem with gcc on IRIX, i.e., gcc can't pass structs
1165 less than 16 bits long unless they are 8 bits; IRIX 6.2 has
1166 some other sized structs. See
1167 http://www.bitmechanic.com/mail-archives/mysql/current/0418.html
1168 This problem seems to be fixed by gcc v2.95.2, gcc v2.8.1
1169 is reported as broken. Check your gcc version for this bug
1170 before installing sendmail.
1173 The IRIX 6.5.4 version of /bin/m4 does not work properly with
1174 sendmail. Either install fw_m4.sw.m4 off the Freeware_May99 CD and
1175 use /usr/freeware/bin/m4 or install and use GNU m4.
1178 NEXTSTEP 3.3 and earlier ship with the old DBM library. Also,
1179 Berkeley DB does not currently run on NEXTSTEP.
1181 If you are compiling on NEXTSTEP, you will have to create an
1182 empty file "unistd.h" and create a file "dirent.h" containing:
1184 #include <sys/dir.h>
1185 #define dirent direct
1187 (devtools/OS/NeXT should try to do both of these for you.)
1189 Apparently, there is a bug in getservbyname on Nextstep 3.0
1190 that causes it to fail under some circumstances with the
1191 message "SYSERR: service "smtp" unknown" logged. You should
1192 be able to work around this by including the line:
1198 BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0
1199 The "m4" from BSDI won't handle the config files properly.
1200 I haven't had a chance to test this myself.
1202 The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config
1203 files properly. One must use either GNU m4 1.1 or the PD-M4
1204 recently posted in comp.os.386bsd.bugs (and maybe others).
1205 NetBSD-current includes the PD-M4 (as stated in the NetBSD file
1208 FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to
1209 use it (look into devtools/OS/FreeBSD). NetBSD-current may have
1210 it too but it has not been verified.
1212 The latest version of Berkeley DB uses a different naming
1213 scheme than the version that is supplied with your release. This
1214 means you will be able to use the current version of Berkeley DB
1215 with sendmail as long you use the new db.h when compiling
1216 sendmail and link it against the new libdb.a or libdb.so. You
1217 should probably keep the original db.h in /usr/include and the
1218 new db.h in /usr/local/include.
1221 If you are running a "virgin" version of 4.3BSD, you'll have
1222 a very old resolver and be missing some header files. The
1223 header files are simple -- create empty versions and everything
1224 will work fine. For the resolver you should really port a new
1225 version (4.8.3 or later) of the resolver; 4.9 is available on
1226 gatekeeper.DEC.COM in pub/BSD/bind/4.9. If you are really
1227 determined to continue to use your old, buggy version (or as
1228 a shortcut to get sendmail working -- I'm sure you have the
1229 best intentions to port a modern version of BIND), you can
1230 copy ../contrib/oldbind.compat.c into sendmail and add the
1231 following to devtools/Site/site.config.m4:
1233 APPENDDEF(`confOBJADD', `oldbind.compat.o')
1235 OpenBSD (up to 2.9 Release), NetBSD, FreeBSD (up to 4.3-RELEASE)
1236 m4 from *BSD won't handle libsm/Makefile.m4 properly, since the
1237 maximum length for strings is too short. You need to use GNU m4
1238 or patch m4, see for example:
1239 http://FreeBSD.org/cgi/cvsweb.cgi/src/usr.bin/m4/eval.c.diff?r1=1.11&r2=1.12
1242 Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT)
1243 From: "Eric C. Hagberg" <hagberg@med.cornell.edu>
1244 Subject: Fix for A/UX ndbm
1246 I guess this isn't really a sendmail bug, however, it is something
1247 that A/UX users should be aware of when compiling sendmail 8.6.
1249 Apparently, the calls that sendmail is using to the ndbm routines
1250 in A/UX 3.0.x contain calls to "broken" routines, in that the
1251 aliases database will break when it gets "just a little big"
1252 (sorry I don't have exact numbers here, but it broke somewhere
1253 around 20-25 aliases for me.), making all aliases non-functional
1254 after exceeding this point.
1256 What I did was to get the gnu-dbm-1.6 package, compile it, and
1257 then re-compile sendmail with "-lgdbm", "-DNDBM", and using the
1258 ndbm.h header file that comes with the gnu-package. This makes
1259 things behave properly.
1260 [NOTE: see comment above about GDBM]
1262 I suppose porting the New Berkeley DB package is another route,
1263 however, I made a quick attempt at it, and found it difficult
1264 (not easy at least); the gnu-dbm package "configured" and
1267 [NOTE: Berkeley DB version 2.X runs on A/UX and can be used for
1271 From: Thomas Essebier <tom@stallion.oz.au>
1272 Organisation: Stallion Technologies Pty Ltd.
1274 It will probably help those who are trying to configure sendmail 8.6.9
1275 to know that if they are on SCO, they had better set
1277 or they will core dump as soon as they try to use the resolver.
1278 i.e., although SCO has _res.dnsrch defined, and is kinda BIND 4.8.3,
1279 it does not inititialise it, nor does it understand 'search' in
1283 According to SCO, the m4 which ships with UnixWare 2.1.2 is broken.
1284 We recommend installing GNU m4 before attempting to build sendmail.
1286 On some versions a bogus error value is listed if connections
1287 time out (large negative number). To avoid this explicitly set
1288 Timeout.connect to a reasonable value (several minutes).
1291 Doug Anderson <dlander@afterlife.ncsc.mil> has successfully run
1292 V8 on the DG/UX 5.4.2 and 5.4R3.x platforms under heavy usage.
1293 Originally, the DG /bin/mail program wasn't compatible with
1294 the V8 sendmail, since the DG /bin/mail requires the environment
1295 variable "_FORCE_MAIL_LOCAL_=yes" be set. Version 8.7 now includes
1296 this in the environment before invoking the local mailer. Some
1297 have used procmail to avoid this problem in the past. It works
1298 but some have experienced file locking problems with their DG/UX
1302 If you are compiling on Apollo, you will have to create an empty
1303 file "unistd.h" (for DomainOS 10.3 and earlier) and create a file
1304 "dirent.h" containing:
1306 #include <sys/dir.h>
1307 #define dirent direct
1309 (devtools/OS/DomainOS will attempt to do both of these for you.)
1312 Date: Mon, 24 Jan 1994 13:25:45 +0200
1313 From: Kimmo Suominen <Kimmo.Suominen@lut.fi>
1314 Subject: 8.6.5 w/ HP-UX 8.00 on s300
1316 Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (i.e.,
1317 a series 300 machine) running HP-UX 8.00.
1319 I was getting segmentation fault when delivering to a local user.
1320 With debugging I saw it was faulting when doing _free@libc... *sigh*
1321 It seems the new implementation of malloc on s300 is buggy as of 8.0,
1322 so I tried out the one in -lmalloc (malloc(3X)). With that it seems
1325 When linking, you will get the following error:
1327 ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a
1329 but you can just ignore it. You might want to add this info to the
1330 README file for the future...
1333 Something broke between versions 0.99.13 and 0.99.14 of Linux: the
1334 flock() system call gives errors. If you are running .14, you must
1335 not use flock. You can do this with -DHASFLOCK=0. We have also
1336 been getting complaints since version 2.4.X was released.
1337 sendmail 8.13 has changed the default locking method to fcntl()
1338 for Linux kernel version 2.4 and later. Be sure to update other
1339 sendmail related programs to match locking techniques (some
1340 examples, besides makemap and mail.local, include procmail, mailx,
1343 Around the inclusion of bind-4.9.3 & Linux libc-4.6.20, the
1344 initialization of the _res structure changed. If /etc/hosts.conf
1345 was configured as "hosts, bind" the resolver code could return
1346 "Name server failure" errors. This is supposedly fixed in
1347 later versions of libc (>= 4.6.29?), and later versions of
1348 sendmail (> 8.6.10) try to work around the problem.
1350 Some older versions (< 4.6.20?) of the libc/include files conflict
1351 with sendmail's version of cdefs.h. Deleting sendmail's version
1352 on those systems should be non-harmful, and new versions don't care.
1354 NOTE ON LINUX & BIND: By default, the Makefile generated for Linux
1355 includes header files in /usr/local/include and libraries in
1356 /usr/local/lib. If you've installed BIND on your system, the header
1357 files typically end up in the search path and you need to add
1358 "-lresolv" to the LIBS line in your Makefile. Really old versions
1359 may need to include "-l44bsd" as well (particularly if the link phase
1360 complains about missing strcasecmp, strncasecmp or strpbrk).
1361 Complaints about an undefined reference to `__dn_skipname' in
1362 domain.o are a sure sign that you need to add -lresolv to LIBS.
1363 Newer versions of Linux are basically threaded BIND, so you may or
1364 may not see complaints if you accidentally mix BIND
1365 headers/libraries with virginal libc. If you have BIND headers in
1366 /usr/local/include (resolv.h, etc) you *should* be adding -lresolv
1367 to LIBS. Data structures may change and you'd be asking for a
1370 A number of problems have been reported regarding the Linux 2.2.0
1371 kernel. So far, these problems have been tracked down to syslog()
1372 and DNS resolution. We believe the problem is with the poll()
1373 implementation in the Linux 2.2.0 kernel and poll()-aware versions
1374 of glib (at least up to 2.0.111).
1377 glibc 2.2.1 (and possibly other versions) changed the value of
1378 __RES in resolv.h but failed to actually provide the IPv6 API
1379 changes that the change implied. Therefore, compiling with
1383 1) Compile without -DNETINET6
1384 2) Build against a real BIND 8.2.2 include/lib tree
1385 3) Wait for glibc to fix it
1388 The AIX 4.X linker uses library paths specified during compilation
1389 using -L for run-time shared library searches. Therefore, it is
1390 vital that relative and unsafe directory paths not be using when
1391 compiling sendmail. Because of this danger, by default, compiles
1392 on AIX use the -blibpath option to limit shared libraries to
1393 /usr/lib and /lib. If you need to allow more directories, such as
1394 /usr/local/lib, modify your devtools/Site/site.AIX.4.2.m4,
1395 site.AIX.4.3.m4, and/or site.AIX.4.x.m4 file(s) and set confLDOPTS
1396 appropriately. For example:
1398 define(`confLDOPTS', `-blibpath:/usr/lib:/lib:/usr/local/lib')
1400 Be sure to only add (safe) system directories.
1402 The AIX version of GNU ld also exhibits this problem. If you are
1403 using that version, instead of -blibpath, use its -rpath option.
1406 gcc -Wl,-rpath /usr/lib -Wl,-rpath /lib -Wl,-rpath /usr/local/lib
1408 AIX 4.X If the test program t-event (and most others) in libsm fails,
1409 check your compiler settings. It seems that the flags -qnoro or
1410 -qnoroconst on some AIX versions trigger a compiler bug. Check
1411 your compiler settings or use cc instead of xlc.
1413 AIX 4.0-4.2, maybe some AIX 4.3 versions
1414 The AIX m4 implements a different mechanism for ifdef which is
1415 inconsistent with other versions of m4. Therefore, it will not
1416 work properly with the sendmail Build architecture or m4
1417 configuration method. To work around this problem, please use
1418 GNU m4 from ftp://ftp.gnu.org/pub/gnu/.
1419 The problem seems to be solved in AIX 4.3.3 at least.
1422 From: Valdis.Kletnieks@vt.edu
1423 Date: Sun, 02 Jul 2000 03:58:02 -0400
1425 Under AIX 4.3.3, after applying bos.adt.include 4.3.3.12 to close the
1426 BIND 8.2.2 security holes, you can no longer build with -DNETINET6
1427 because they changed the value of __RES in resolv.h but failed to
1428 actually provide the API changes that the change implied.
1431 1) Compile without -DNETINET6
1432 2) Build against a real BIND 8.2.2 include/lib tree
1433 3) Wait for IBM to fix it
1436 This version of sendmail does not support MB, MG, and MR resource
1437 records, which are supported by AIX sendmail.
1439 Several people have reported that the IBM-supplied named returns
1440 fairly random results -- the named should be replaced. It is not
1441 necessary to replace the resolver, which will simplify installation.
1442 A new BIND resolver can be found at http://www.isc.org/isc/.
1445 The supplied load average code only works correctly for AIX 3.2.x.
1446 For 3.1, use -DLA_TYPE=LA_SUBR and get the latest ``monitor''
1447 package by Jussi Maki <jmaki@hut.fi> from ftp.funet.fi in the
1448 directory pub/unix/AIX/rs6000/monitor-1.12.tar.Z; use the loadavgd
1449 daemon, and the getloadavg subroutine supplied with that package.
1450 If you don't care about load average throttling, just turn off
1451 load average checking using -DLA_TYPE=LA_ZERO.
1454 RISC/os from MIPS is a merged AT&T/Berkeley system. When you
1455 compile on that platform you will get duplicate definitions
1456 on many files. You can ignore these.
1458 System V Release 4 Based Systems
1459 There is a single devtools OS that is intended for all SVR4-based
1460 systems (built from devtools/OS/SVR4). It defines __svr4__,
1461 which is predefined by some compilers. If your compiler already
1462 defines this compile variable, you can delete the definition from
1463 the generated Makefile or create a devtools/Site/site.config.m4
1466 It's been tested on Dell Issue 2.2.
1469 Date: Mon, 06 Dec 1993 10:42:29 EST
1470 From: "Kimmo Suominen" <kim@grendel.lut.fi>
1471 Message-ID: <2d0352f9.lento29@lento29.UUCP>
1472 To: eric@cs.berkeley.edu
1473 Cc: sendmail@cs.berkeley.edu
1474 Subject: Notes for DELL SVR4
1478 Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4. I ran
1479 across these things when helping out some people who contacted me by
1482 1) Use gcc 2.4.5 (or later?). Dell distributes gcc 2.1 with their
1483 Issue 2.2 Unix. It is too old, and gives you problems with
1484 clock.c, because sigset_t won't get defined in <sys/signal.h>.
1485 This is due to a problematic protection rule in there, and is
1486 fixed with gcc 2.4.5.
1488 2) If you don't use the new Berkeley DB (-DNEWDB), then you need
1489 to add "-lc -lucb" to the libraries to link with. This is because
1490 the -ldbm distributed by Dell needs the bcopy, bcmp and bzero
1491 functions. It is important that you specify both libraries in
1492 the given order to be sure you only get the BSTRING functions
1493 from the UCB library (and not the signal routines etc.).
1495 3) Don't leave out "-lelf" even if compiling with "-lc -lucb".
1496 The UCB library also has another copy of the nlist routines,
1497 but we do want the ones from "-lelf".
1499 If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they
1500 can use anonymous ftp to fetch them from lut.fi in the /kim directory.
1501 They are copies of what I use on grendel.lut.fi, and offering them
1502 does not imply that I would also support them. I have sent the DB
1503 port for SVR4 back to Keith Bostic for inclusion in the official
1504 distribution, but I haven't heard anything from him as of today.
1506 - gcc-2.4.5-svr4.tar.gz (gcc 2.4.5 and the corresponding libg++)
1507 - db-1.72.tar.gz (with source, objects and a installed copy)
1512 * Kimmo.Suominen@lut.fi * SysVr4 enthusiast at GRENDEL.LUT.FI *
1513 * KIM@FINFILES.BITNET * Postmaster and Hostmaster at LUT.FI *
1514 * + 358 200 865 718 * Unix area moderator at NIC.FUNET.FI *
1516 ConvexOS 10.1 and below
1517 In order to use the name server, you must create the file
1518 /etc/use_nameserver. If this file does not exist, the call
1519 to res_init() will fail and you will have absolutely no
1520 access to DNS, including MX records.
1523 In order to get UTS to work, you will have to port BIND 4.9.
1524 The vendor's BIND is reported to be ``totally inadequate.''
1525 See sendmail/contrib/AmdahlUTS.patch for the patches necessary
1526 to get BIND 4.9 compiled for UTS.
1529 According to Alexander Kolbasov <sasha@unitech.gamma.ru>,
1530 the m4 on UnixWare 2.0 (still in Beta) will core dump on the
1531 config files. GNU m4 and the m4 from UnixWare 1.x both work.
1533 According to Larry Rosenman <ler@lerami.lerctr.org>:
1535 UnixWare 2.1.[23]'s m4 chokes (not obviously) when
1536 processing the 8.9.0 cf files.
1538 I had a LOCAL_RULE_0 that wound up AFTER the
1539 SBasic_check_rcpt rules using the SCO supplied M4.
1543 Some people have reported that the -O flag on UNICOS can cause
1544 problems. You may want to turn this off if you have problems
1545 running sendmail. Reported by Jerry G. DeLapp <jgd@acl.lanl.gov>.
1547 Darwin/Mac OS X (10.X.X)
1548 The linker errors produced regarding getopt() and its associated
1549 variables can safely be ignored.
1551 From Mike Zimmerman <zimmy@torrentnet.com>:
1553 From scratch here is what Darwin users need to do to the standard
1554 10.0.0, 10.0.1 install to get sendmail working.
1555 From http://www.macosx.com/forums/showthread.php?s=6dac0e9e1f3fd118a4870a8a9b559491&threadid=2242:
1556 1. chmod g-w / /private /private/etc
1557 2. Properly set HOSTNAME in /etc/hostconfig to your FQDN:
1558 HOSTNAME=-my.domain.com-
1559 3. Edit /etc/rc.boot:
1560 hostname my.domain.com
1561 domainname domain.com
1562 4. Edit /System/Library/StartupItems/Sendmail/Sendmail:
1563 Remove the "&" after the sendmail command:
1564 /usr/sbin/sendmail -bd -q1h
1566 From Carsten Klapp <carsten.klapp@home.com>:
1568 The easiest workaround is to remove the group-writable permission
1569 for the root directory and the symbolic /etc inherits this
1570 change. While this does fix sendmail, the unfortunate side-effect
1571 is the OS X admin will no longer be able to manipulate icons in the
1572 top level of the Startup disk unless logged into the GUI as the
1575 In applying the alternate workaround, care must be taken while
1576 swapping the symlink /etc with the directory /private/etc. In all
1577 likelihood any admin who is concerned with this sendmail error has
1578 enough experience to not accidentally harm anything in the process.
1580 a. Swap the /etc symlink with /private/etc (as superuser):
1582 mv /private/etc /etc
1583 ln -s /etc /private/etc
1585 b. Set / to group unwritable (as superuser):
1588 Darwin/Mac OS X (10.1.5)
1589 Apple's upgrade to sendmail 8.12 is incorrectly configured. You
1590 will need to manually fix it up by doing the following:
1592 1. chown smmsp:smmsp /var/spool/clientmqueue
1593 2. chmod 2770 /var/spool/clientmqueue
1594 3. chgrp smmsp /usr/sbin/sendmail
1595 4. chmod g+s /usr/sbin/sendmail
1597 From Daniel J. Luke <dluke@geeklair.net>:
1599 It appears that setting the sendmail.cf property in
1600 /locations/sendmail in NetInfo on Mac OS X 10.1.5 with sendmail
1601 8.12.4 causes 'bad things' to happen.
1603 Specifically sendmail instances that should be getting their config
1604 from /etc/mail/submit.cf don't (so mail/mutt/perl scripts which
1605 open pipes to sendmail stop working as sendmail tries to write to
1606 /var/spool/mqueue and cannot as sendmail is no longer suid root).
1608 Removing the entry from NetInfo fixes this problem.
1611 I'm told that GNU getopt has a problem in that it gets confused
1612 by the double call. Use the version in conf.c instead.
1614 BIND 4.9.2 and Ultrix
1615 If you are running on Ultrix, be sure you read conf/Info.Ultrix
1616 in the BIND distribution very carefully -- there is information
1617 in there that you need to know in order to avoid errors of the
1620 /lib/libc.a(gethostent.o): sethostent: multiply defined
1621 /lib/libc.a(gethostent.o): endhostent: multiply defined
1622 /lib/libc.a(gethostent.o): gethostbyname: multiply defined
1623 /lib/libc.a(gethostent.o): gethostbyaddr: multiply defined
1625 during the link stage.
1628 BIND 8.X returns HOST_NOT_FOUND instead of TRY_AGAIN on temporary
1629 DNS failures when trying to find the hostname associated with an IP
1630 address (gethostbyaddr()). This can cause problems as
1631 $&{client_name} based lookups in class R ($=R) and the access
1632 database won't succeed.
1634 This will be fixed in BIND 8.2.1. For earlier versions, this can
1635 be fixed by making "dns" the last name service queried for host
1636 resolution in /etc/irs.conf:
1638 hosts local continue
1642 Some compilers (notably gcc) claim to be ANSI C but do not
1643 include the ANSI-required routine "strtoul". If your compiler
1644 has this problem, you will get an error in srvrsmtp.c on the
1647 # ifdef defined(__STDC__) && !defined(BROKEN_ANSI_LIBRARY)
1648 e->e_msgsize = strtoul(vp, (char **) NULL, 10);
1650 e->e_msgsize = strtol(vp, (char **) NULL, 10);
1653 You can use -DBROKEN_ANSI_LIBRARY to get around this problem.
1656 Date: 23 Sep 1995 23:56:07 GMT
1657 Message-ID: <95925101334.~INN-AUMa00187.comp-news@dl.ac.uk>
1658 From: alansz@mellers1.psych.berkeley.edu (Alan Schwartz)
1659 Subject: Listproc 6.0c + Sendmail 8.7 [Helpful hint]
1661 Just upgraded to sendmail 8.7, and discovered that listproc 6.0c
1662 breaks, because it, by default, sends a blank "HELO" rather than
1663 a "HELO hostname" when using the 'system' or 'telnet' mail method.
1665 The fix is to include -DZMAILER in the compilation, which will
1666 cause it to use "HELO hostname" (which Z-mail apparently requires
1670 OpenSSL versions prior to 0.9.6 use a macro named Free which
1671 conflicts with existing macro names on some platforms, such as
1673 Do not use 0.9.3, but OpenSSL 0.9.5a or later if compatible with
1677 PH support is provided by Mark Roth <roth@uiuc.edu>. The map is
1678 described at http://www-dev.cites.uiuc.edu/sendmail/ .
1680 NOTE: The "spacedname" pseudo-field which was used by earlier
1681 versions of the PH map code is no longer supported! See the URL
1682 listed above for more information.
1684 Please contact Mark Roth for support and questions regarding the
1688 If you are using -DTCPWRAPPERS to get TCP Wrappers support you will
1689 also need to install libwrap.a and modify your site.config.m4 file
1690 or the generated Makefile to include -lwrap in the LIBS line
1691 (make sure that INCDIRS and LIBDIRS point to where the tcpd.h and
1692 libwrap.a can be found).
1694 TCP Wrappers is available at ftp://ftp.porcupine.org/pub/security/.
1696 If you have alternate MX sites for your site, be sure that all of
1697 your MX sites reject the same set of hosts. If not, a bad guy whom
1698 you reject will connect to your site, fail, and move on to the next
1699 MX site, which will accept the mail for you and forward it on to you.
1701 Regular Expressions (MAP_REGEX)
1702 If sendmail linking fails with:
1704 undefined reference to 'regcomp'
1706 or sendmail gives an error about a regular expression with:
1708 pattern-compile-error: : Operation not applicable
1710 Your libc does not include a running version of POSIX-regex. Use
1711 librx or regex.o from the GNU Free Software Foundation,
1712 ftp://ftp.gnu.org/pub/gnu/rx-?.?.tar.gz or
1713 ftp://ftp.gnu.org/pub/gnu/regex-?.?.tar.gz.
1714 You can also use the regex-lib by Henry Spencer,
1715 ftp://ftp.funet.fi/pub/languages/C/spencer/regex.shar.gz
1716 Make sure, your compiler reads regex.h from the distribution,
1717 not from /usr/include, otherwise sendmail will dump a core.
1719 Fedora Core 5, 64 bit version
1720 If the ld stage fails with undefined functions like
1721 __res_querydomain, __dn_expand
1722 then add these lines to devtools/Site/site.config.m4
1724 APPENDDEF(`confLIBDIRS', `-L/usr/lib64')
1725 APPENDDEF(`confINCDIRS', `-I/usr/include/bind9')
1727 and rebuild (sh ./Build -c).
1729 Problem noted by Daniel Krones, solution suggested by
1736 The manual pages have been written against the -man macros, and
1737 should format correctly with any reasonable *roff.
1744 As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log
1745 some debugging output (logged at LOG_DEBUG severity). The
1746 information dumped is:
1748 * The value of the $j macro.
1749 * A warning if $j is not in the set $=w.
1750 * A list of the open file descriptors.
1751 * The contents of the connection cache.
1752 * If ruleset 89 is defined, it is evaluated and the results printed.
1754 This allows you to get information regarding the runtime state of the
1755 daemon on the fly. This should not be done too frequently, since
1756 the process of rewriting may lose memory which will not be recovered.
1757 Also, ruleset 89 may call non-reentrant routines, so there is a small
1758 non-zero probability that this will cause other problems. It is
1759 really only for debugging serious problems.
1761 A typical formulation of ruleset 89 would be:
1763 R$* $@ $>0 some test address
1766 +-----------------------------+
1767 | DESCRIPTION OF SOURCE FILES |
1768 +-----------------------------+
1770 The following list describes the files in this directory:
1772 Build Shell script for building sendmail.
1773 Makefile A convenience for calling ./Build.
1774 Makefile.m4 A template for constructing a makefile based on the
1775 information in the devtools directory.
1777 TRACEFLAGS My own personal list of the trace flags -- not guaranteed
1778 to be particularly up to date.
1779 alias.c Does name aliasing in all forms.
1780 aliases.5 Man page describing the format of the aliases file.
1781 arpadate.c A subroutine which creates ARPANET standard dates.
1782 bf.c Routines to implement memory-buffered file system using
1783 hooks provided by libsm now (formerly Torek stdio library).
1784 bf.h Buffered file I/O function declarations and
1785 data structure and function declarations for bf.c.
1786 collect.c The routine that actually reads the mail into a temp
1787 file. It also does a certain amount of parsing of
1789 conf.c The configuration file. This contains information
1790 that is presumed to be quite static and non-
1791 controversial, or code compiled in for efficiency
1792 reasons. Most of the configuration is in sendmail.cf.
1793 conf.h Configuration that must be known everywhere.
1794 control.c Routines to implement control socket.
1795 convtime.c A routine to sanely process times.
1796 daemon.c Routines to implement daemon mode.
1797 deliver.c Routines to deliver mail.
1798 domain.c Routines that interface with DNS (the Domain Name
1800 envelope.c Routines to manipulate the envelope structure.
1801 err.c Routines to print error messages.
1802 headers.c Routines to process message headers.
1803 helpfile An example helpfile for the SMTP HELP command and -bt mode.
1804 macro.c The macro expander. This is used internally to
1805 insert information from the configuration file.
1806 mailq.1 Man page for the mailq command.
1807 main.c The main routine to sendmail. This file also
1808 contains some miscellaneous routines.
1809 makesendmail A convenience for calling ./Build.
1810 map.c Support for database maps.
1811 mci.c Routines that handle mail connection information caching.
1812 milter.c MTA portions of the mail filter API.
1813 mime.c MIME conversion routines.
1814 newaliases.1 Man page for the newaliases command.
1815 parseaddr.c The routines which do address parsing.
1816 queue.c Routines to implement message queueing.
1817 readcf.c The routine that reads the configuration file and
1818 translates it to internal form.
1819 recipient.c Routines that manipulate the recipient list.
1820 sasl.c Routines to interact with Cyrys-SASL.
1821 savemail.c Routines which save the letter on processing errors.
1822 sendmail.8 Man page for the sendmail command.
1823 sendmail.h Main header file for sendmail.
1824 sfsasl.c I/O interface between SASL/TLS and the MTA.
1825 sfsasl.h Header file for sfsasl.c.
1826 shmticklib.c Routines for shared memory counters.
1827 sm_resolve.c Routines for DNS lookups (for DNS map type).
1828 sm_resolve.h Header file for sm_resolve.c.
1829 srvrsmtp.c Routines to implement server SMTP.
1830 stab.c Routines to manage the symbol table.
1831 stats.c Routines to collect and post the statistics.
1832 statusd_shm.h Data structure and function declarations for shmticklib.c.
1833 sysexits.c List of error messages associated with error codes
1835 sysexits.h List of error codes for systems that lack their own.
1836 timers.c Routines to provide microtimers.
1837 timers.h Data structure and function declarations for timers.h.
1838 tls.c Routines for TLS.
1839 trace.c The trace package. These routines allow setting and
1840 testing of trace flags with a high granularity.
1841 udb.c The user database interface module.
1842 usersmtp.c Routines to implement user SMTP.
1843 util.c Some general purpose routines used by sendmail.
1844 version.c The version number and information about this
1845 version of sendmail.
1847 (Version $Revision: 8.389 $, last update $Date: 2006/05/02 16:58:50 $ )
lentferj's projects / dragonfly.git / blob