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 8.386 2005/03/04 23:24:08 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.
507 +-----------------------+
508 | COMPILE-TIME FEATURES |
509 +-----------------------+
511 There are a bunch of features that you can decide to compile in, such
512 as selecting various database packages and special protocol support.
513 Several are assumed based on other compilation flags -- if you want to
514 "un-assume" something, you probably need to edit conf.h. Compilation
515 flags that add support for special features include:
517 NDBM Include support for "new" DBM library for aliases and maps.
518 Normally defined in the Makefile.
519 NEWDB Include support for Berkeley DB package (hash & btree)
520 for aliases and maps. Normally defined in the Makefile.
521 If the version of NEWDB you have is the old one that does
522 not include the "fd" call (this call was added in version
523 1.5 of the Berkeley DB code), you must upgrade to the
524 current version of Berkeley DB.
525 NIS Define this to get NIS (YP) support for aliases and maps.
526 Normally defined in the Makefile.
527 NISPLUS Define this to get NIS+ support for aliases and maps.
528 Normally defined in the Makefile.
529 HESIOD Define this to get Hesiod support for aliases and maps.
530 Normally defined in the Makefile.
531 NETINFO Define this to get NeXT NetInfo support for aliases and maps.
532 Normally defined in the Makefile.
533 LDAPMAP Define this to get LDAP support for maps.
534 PH_MAP Define this to get PH support for maps.
535 MAP_NSD Define this to get nsd support for maps.
536 USERDB Define this to 1 to include support for the User Information
537 Database. Implied by NEWDB or HESIOD. You can use
538 -DUSERDB=0 to explicitly turn it off.
539 IDENTPROTO Define this as 1 to get IDENT (RFC 1413) protocol support.
540 This is assumed unless you are running on Ultrix or
541 HP-UX, both of which have a problem in the UDP
542 implementation. You can define it to be 0 to explicitly
543 turn off IDENT protocol support. If defined off, the code
544 is actually still compiled in, but it defaults off; you
545 can turn it on by setting the IDENT timeout in the
547 IP_SRCROUTE Define this to 1 to get IP source routing information
548 displayed in the Received: header. This is assumed on
549 most systems, but some (e.g., Ultrix) apparently have a
550 broken version of getsockopt that doesn't properly
551 support the IP_OPTIONS call. You probably want this if
552 your OS can cope with it. Symptoms of failure will be that
553 it won't compile properly (that is, no support for fetching
554 IP_OPTIONs), or it compiles but source-routed TCP connections
555 either refuse to open or open and hang for no apparent reason.
556 Ultrix and AIX3 are known to fail this way.
557 LOG Set this to get syslog(3) support. Defined by default
558 in conf.h. You want this if at all possible.
559 NETINET Set this to get TCP/IP support. Defined by default
560 in conf.h. You probably want this.
561 NETINET6 Set this to get IPv6 support. Other configuration may
562 be needed in conf.h for your particular operating system.
563 Also, DaemonPortOptions must be set appropriately for
564 sendmail to accept IPv6 connections.
565 NETISO Define this to get ISO networking support.
566 NETUNIX Define this to get Unix domain networking support. Defined
567 by default. A few bizarre systems (SCO, ISC, Altos) don't
568 support this networking domain.
569 NETNS Define this to get NS networking support.
570 NETX25 Define this to get X.25 networking support.
571 NAMED_BIND If non-zero, include DNS (name daemon) support, including
572 MX support. The specs say you must use this if you run
573 SMTP. You don't have to be running a name server daemon
574 on your machine to need this -- any use of the DNS resolver,
575 including remote access to another machine, requires this
576 option. Defined by default in conf.h. Define it to zero
577 ONLY on machines that do not use DNS in any way.
578 MATCHGECOS Permit fuzzy matching of user names against the full
579 name (GECOS) field in the /etc/passwd file. This should
580 probably be on, since you can disable it from the config
581 file if you want to. Defined by default in conf.h.
582 MIME8TO7 If non-zero, include 8 to 7 bit MIME conversions. This
583 also controls advertisement of 8BITMIME in the ESMTP
585 MIME7TO8_OLD If 0 then use an algorithm for MIME 7-bit quoted-printable
586 or base64 encoding to 8-bit text that has been introduced
587 in 8.12.3. There are some examples where that code fails,
588 but the old code works. If you have an example of improper
589 7 to 8 bit conversion please send it to sendmail-bugs.
590 MIME7TO8 If non-zero, include 7 to 8 bit MIME conversions.
591 HES_GETMAILHOST Define this to 1 if you are using Hesiod with the
592 hes_getmailhost() routine. This is included with the MIT
593 Hesiod distribution, but not with the DEC Hesiod distribution.
594 XDEBUG Do additional internal checking. These don't cost too
595 much; you might as well leave this on.
596 TCPWRAPPERS Turns on support for the TCP wrappers library (-lwrap).
597 See below for further information.
598 SECUREWARE Enable calls to the SecureWare luid enabling/changing routines.
599 SecureWare is a C2 security package added to several UNIX's
600 (notably ConvexOS) to get a C2 Secure system. This
601 option causes mail delivery to be done with the luid of the
603 SHARE_V1 Support for the fair share scheduler, version 1. Setting to
604 1 causes final delivery to be done using the recipients
605 resource limitations. So far as I know, this is only
606 supported on ConvexOS.
607 SASL Enables SMTP AUTH (RFC 2554). This requires the Cyrus SASL
608 library (ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/). Please
609 install at least version 1.5.13. See below for further
610 information: SASL COMPILATION AND CONFIGURATION. If your
611 SASL library is older than 1.5.10, you have to set this
612 to its version number using a simple conversion: a.b.c
613 -> c + b*100 + a*10000, e.g. for 1.5.9 define SASL=10509.
614 Note: Using an older version than 1.5.5 of Cyrus SASL is
615 not supported. Starting with version 1.5.10, setting SASL=1
616 is sufficient. Any value other than 1 (or 0) will be
617 compared with the actual version found and if there is a
618 mismatch, compilation will fail.
619 EGD Define this if your system has EGD installed, see
620 http://egd.sourceforge.net/ . It should be used to
621 seed the PRNG for STARTTLS if HASURANDOMDEV is not defined.
622 STARTTLS Enables SMTP STARTTLS (RFC 2487). This requires OpenSSL
623 (http://www.OpenSSL.org/); use OpenSSL 0.9.5a or later
624 (if compatible with this version), do not use 0.9.3.
625 See STARTTLS COMPILATION AND CONFIGURATION for further
627 TLS_NO_RSA Turn off support for RSA algorithms in STARTTLS.
628 MILTER Turn on support for external filters using the Milter API;
629 this option is set by default, to turn it off use
630 APPENDDEF(`conf_sendmail_ENVDEF', `-DMILTER=0')
631 in devtools/Site/site.config.m4 (see devtools/README).
632 See libmilter/README for more information about milter.
633 REQUIRES_DIR_FSYNC Turn on support for file systems that require to
634 call fsync() for a directory if the meta-data in it has
635 been changed. This should be turned on at least for older
636 versions of ReiserFS; it is enabled by default for Linux.
637 According to some information this flag is not needed
638 anymore for kernel 2.4.16 and newer. We would appreciate
639 feedback about the semantics of the various file systems
641 An alternative to this compile time flag is to mount the
642 queue directory without the -async option, or using
644 DBMMODE The default file permissions to use when creating new
645 database files for maps and aliases. Defaults to 0640.
647 Generic notice: If you enable a compile time option that needs
648 libraries or include files that don't come with sendmail or are
649 installed in a location that your C compiler doesn't use by default
650 you should set confINCDIRS and confLIBDIRS as explained in the
651 first section: BUILDING SENDMAIL.
654 +---------------------+
655 | DNS/RESOLVER ISSUES |
656 +---------------------+
658 Many systems have old versions of the resolver library. At a minimum,
659 you should be running BIND 4.8.3; older versions may compile, but they
660 have known bugs that should give you pause.
662 Common problems in old versions include "undefined" errors for
665 Some people have had a problem with BIND 4.9; it uses some routines
666 that it expects to be externally defined such as strerror(). It may
667 help to link with "-l44bsd" to solve this problem. This has apparently
668 been fixed in later versions of BIND, starting around 4.9.3. In other
669 words, if you use 4.9.0 through 4.9.2, you need -l44bsd; for earlier or
670 later versions, you do not.
672 !PLEASE! be sure to link with the same version of the resolver as
673 the header files you used -- some people have used the 4.9 headers
674 and linked with BIND 4.8 or vice versa, and it doesn't work.
675 Unfortunately, it doesn't fail in an obvious way -- things just
678 WILDCARD MX RECORDS ARE A BAD IDEA! The only situation in which they
679 work reliably is if you have two versions of DNS, one in the real world
680 which has a wildcard pointing to your firewall, and a completely
681 different version of the database internally that does not include
682 wildcard MX records that match your domain. ANYTHING ELSE WILL GIVE
685 When attempting to canonify a hostname, some broken name servers will
686 return SERVFAIL (a temporary failure) on T_AAAA (IPv6) lookups. If you
687 want to excuse this behavior, include WorkAroundBrokenAAAA in
688 ResolverOptions. However, instead, we recommend catching the problem and
689 reporting it to the name server administrator so we can rid the world of
693 +----------------------------------------+
694 | STARTTLS COMPILATION AND CONFIGURATION |
695 +----------------------------------------+
697 Please read the documentation accompanying the OpenSSL library. You
698 have to compile and install the OpenSSL libraries before you can compile
699 sendmail. See devtools/README how to set the correct compile time
700 parameters; you should at least set the following variables:
702 APPENDDEF(`conf_sendmail_ENVDEF', `-DSTARTTLS')
703 APPENDDEF(`conf_sendmail_LIBS', `-lssl -lcrypto')
705 If you have installed the OpenSSL libraries and include files in
706 a location that your C compiler doesn't use by default you should
707 set confINCDIRS and confLIBDIRS as explained in the first section:
710 Configuration information can be found in doc/op/op.me (required
711 certificates) and cf/README (how to tell sendmail about certificates).
713 To perform an initial test, connect to your sendmail daemon
714 (telnet localhost 25) and issue a EHLO localhost and see whether
716 is in the response. If it isn't, run the daemon with
718 and try again. Then take a look at the logfile and see whether
719 there are any problems listed about permissions (unsafe files)
720 or the validity of X.509 certificates.
722 From: Garrett Wollman <wollman@lcs.mit.edu>
724 If your certificate authority is hierarchical, and you only include
725 the top-level CA certificate in the CACertFile file, some mail clients
726 may be unable to infer the proper certificate chain when selecting a
727 client certificate. Including the bottom-level CA certificate(s) in
728 the CACertFile file will allow these clients to work properly. This
729 is not necessary if you are not using client certificates for
730 authentication, or if all your clients are running Sendmail or other
731 programs using the OpenSSL library (which get it right automatically).
732 In addition, some mail clients are totally incapable of using
733 certificate authentication -- even some of those which already support
734 SSL/TLS for confidentiality.
736 Further information can be found via:
737 http://www.sendmail.org/tips/
740 +------------------------------------+
741 | SASL COMPILATION AND CONFIGURATION |
742 +------------------------------------+
744 Please read the documentation accompanying the Cyrus SASL library
745 (INSTALL and README). If you use Berkeley DB for Cyrus SASL then
746 you must compile sendmail with the same version of Berkeley DB.
747 See devtools/README for how to set the correct compile time parameters;
748 you should at least set the following variables:
750 APPENDDEF(`conf_sendmail_ENVDEF', `-DSASL')
751 APPENDDEF(`conf_sendmail_LIBS', `-lsasl')
753 If you have installed the Cyrus SASL library and include files in
754 a location that your C compiler doesn't use by default you should
755 set confINCDIRS and confLIBDIRS as explained in the first section:
758 You have to select and install authentication mechanisms and tell
759 sendmail where to find the sasl library and the include files (see
760 devtools/README for the parameters to set). Set up the required
761 users and passwords as explained in the SASL documentation. See
762 also cf/README for authentication related options (especially
763 DefaultAuthInfo if you want authentication between MTAs).
765 To perform an initial test, connect to your sendmail daemon
766 (telnet localhost 25) and issue a EHLO localhost and see whether
768 is in the response. If it isn't, run the daemon with
770 and try again. Then take a look at the logfile and see whether
771 there are any security related problems listed (unsafe files).
773 Further information can be found via:
774 http://www.sendmail.org/tips/
777 +-------------------------------------+
778 | OPERATING SYSTEM AND COMPILE QUIRKS |
779 +-------------------------------------+
782 When compiling with "gcc -O -Wall" specify "-DSM_OMIT_BOGUS_WARNINGS"
783 too (see include/sm/cdefs.h for more info).
785 *****************************************************************
786 ** IMPORTANT: DO NOT USE OPTIMIZATION (``-O'') IF YOU ARE **
787 ** RUNNING GCC 2.4.x or 2.5.x. THERE IS A BUG IN THE GCC **
788 ** OPTIMIZER THAT CAUSES SENDMAIL COMPILES TO FAIL MISERABLY. **
789 *****************************************************************
791 Jim Wilson of Cygnus believes he has found the problem -- it will
792 probably be fixed in GCC 2.5.6 -- but until this is verified, be
793 very suspicious of gcc -O. This problem is reported to have been
796 A bug in gcc 2.5.5 caused problems compiling sendmail 8.6.5 with
797 optimization on a Sparc. If you are using gcc 2.5.5, youi should
798 upgrade to the latest version of gcc.
800 Apparently GCC 2.7.0 on the Pentium processor has optimization
801 problems. I recommend against using -O on that architecture. This
802 has been seen on FreeBSD 2.0.5 RELEASE.
804 Solaris 2.X users should use version 2.7.2.3 over 2.7.2.
806 We have been told there are problems with gcc 2.8.0. If you are
807 using this version, you should upgrade to 2.8.1 or later.
810 Berkeley DB 4.1.x with x <= 24 does not work with sendmail.
811 You need at least 4.1.25.
813 GDBM GDBM does not work with sendmail because the additional
814 security checks and file locking cause problems. Unfortunately,
815 gdbm does not provide a compile flag in its version of ndbm.h so
816 the code can adapt. Until the GDBM authors can fix these problems,
817 GDBM will not be supported. Please use Berkeley DB instead.
819 Configuration file location
820 Up to 8.6, sendmail tried to find the sendmail.cf file in the same
821 place as the vendors had put it, even when this was obviously
822 stupid. As of 8.7, sendmail ALWAYS looks for /etc/sendmail.cf.
823 Beginning with 8.10, sendmail uses /etc/mail/sendmail.cf.
824 You can get sendmail to use the stupid vendor .cf location by
825 adding -DUSE_VENDOR_CF_PATH during compilation, but this may break
826 support programs and scripts that need to find sendmail.cf. You
827 are STRONGLY urged to use symbolic links if you want to use the
828 vendor location rather than changing the location in the sendmail
831 NETINFO systems use NETINFO to determine the location of
832 sendmail.cf. The full path to sendmail.cf is stored as the value of
833 the "sendmail.cf" property in the "/locations/sendmail"
834 subdirectory of NETINFO. Set the value of this property to
835 "/etc/mail/sendmail.cf" (without the quotes) to use this new
836 default location for Sendmail 8.10.0 and higher.
838 ControlSocket permissions
839 Paraphrased from BIND 8.2.1's README:
841 Solaris and other pre-4.4BSD kernels do not respect ownership or
842 protections on UNIX-domain sockets. The short term fix for this is to
843 override the default path and put such control sockets into root-
844 owned directories which do not permit non-root to r/w/x through them.
845 The long term fix is for all kernels to upgrade to 4.4BSD semantics.
848 The MPE-specific code within sendmail emulates a set-user-id root
849 environment for the sendmail binary. But there is no root uid 0 on
850 MPE, nor is there any support for set-user-id programs. Even when
851 sendmail thinks it is running as uid 0, it will still have the file
852 access rights of the underlying non-zero uid, but because sendmail is
853 an MPE priv-mode program it will still be able to call setuid() to
854 successfully switch to a new uid.
856 MPE setgid() semantics don't quite work the way sendmail expects, so
857 special emulation is done here also.
859 This uid/gid emulation is enabled via the setuid/setgid file mode bits
860 which are not currently used by MPE. Code in libsm/mpeix.c examines
861 these bits and enables emulation if they have been set, i.e.,
862 chmod u+s,g+s /SENDMAIL/CURRENT/SENDMAIL.
864 SunOS 4.x (Solaris 1.x)
865 You may have to use -lresolv on SunOS. However, beware that
866 this links in a new version of gethostbyname that does not
867 understand NIS, so you must have all of your hosts in DNS.
869 Some people have reported problems with the SunOS version of
870 -lresolv and/or in.named, and suggest that you get a newer
871 version. The symptoms are delays when you connect to the
872 SMTP server on a SunOS machine or having your domain added to
873 addresses inappropriately. There is a version of BIND
874 version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9.
876 There is substantial disagreement about whether you can make
877 this work with resolv+, which allows you to specify a search-path
878 of services. Some people report that it works fine, others
879 claim it doesn't work at all (including causing sendmail to
880 drop core when it tries to do multiple resolv+ lookups for a
881 single job). I haven't tried resolv+, as we use DNS exclusively.
883 Should you want to try resolv+, it is on ftp.uu.net in
886 Apparently getservbyname() can fail under moderate to high
887 load under some circumstances. This will exhibit itself as
888 the message ``554 makeconnection: service "smtp" unknown''.
889 The problem has been traced to one or more blank lines in
890 /etc/services on the NIS server machine. Delete these
891 and it should work. This info is thanks to Brian Bartholomew
892 <bb@math.ufl.edu> of I-Kinetics, Inc.
894 NOTE: The SunOS 4.X linker uses library paths specified during
895 compilation using -L for run-time shared library searches.
896 Therefore, it is vital that relative and unsafe directory paths not
897 be used when compiling sendmail.
899 SunOS 4.0.2 (Sun 386i)
900 Date: Fri, 25 Aug 1995 11:13:58 +0200 (MET DST)
903 Sendmail 8.7.Beta.12 compiles and runs nearly out of the box with the
905 * Don't use /usr/5bin in your PATH, but make /usr/5bin/uname
906 available as "uname" command.
907 * Use the defines "-DBSD4_3 -DNAMED_BIND=0" in
908 devtools/OS/SunOS.4.0, which is selected via the "uname" command.
909 I recommend to make available the db-library on the system first
910 (and change the Makefile to use this library).
911 Note that the sendmail.cf and aliases files are found in /etc.
913 SunOS 4.1.3, 4.1.3_U1
914 Sendmail causes crashes on SunOS 4.1.3 and 4.1.3_U1. According
915 to Sun bug number 1077939:
917 If an application does a getsockopt() on a SOCK_STREAM (TCP) socket
918 after the other side of the connection has sent a TCP RESET for
919 the stream, the kernel gets a Bus Trap in the tcp_ctloutput() or
920 ip_ctloutput() routine.
922 For 4.1.3, this is fixed in patch 100584-08, available on the
923 Sunsolve 2.7.1 or later CDs. For 4.1.3_U1, this was fixed in patch
924 101790-01 (SunOS 4.1.3_U1: TCP socket and reset problems), later
925 obsoleted by patch 102010-05.
927 Sun patch 100584-08 is not currently publicly available on their
928 ftp site but a user has reported it can be found at other sites
929 using a web search engine.
931 Solaris 2.x (SunOS 5.x)
932 To compile for Solaris, the Makefile built by Build must
933 include a SOLARIS definition which reflects the Solaris version
934 (i.e. -DSOLARIS=20400 for 2.4 or -DSOLARIS=20501 for 2.5.1).
935 If you are using gcc, make sure -I/usr/include is not used (or
936 it might complain about TopFrame). If you are using Sun's cc,
937 make sure /opt/SUNWspro/bin/cc is used instead of /usr/ucb/cc
938 (or it might complain about tm_zone).
940 The Solaris 2.x (x <= 3) "syslog" function is apparently limited
941 to something about 90 characters because of a kernel limitation.
942 If you have source code, you can probably up this number. You
943 can get patches that fix this problem: the patch ids are:
949 Be sure you have the appropriate patch installed or you won't
952 Solaris 2.4 (SunOS 5.4)
953 If you include /usr/lib at the end of your LD_LIBRARY_PATH you run
954 the risk of getting the wrong libraries under some circumstances.
955 This is because of a new feature in Solaris 2.4, described by
956 Rod.Evans@Eng.Sun.COM:
958 >> Prior to SunOS 5.4, any LD_LIBRARY_PATH setting was ignored by the
959 >> runtime linker if the application was setxid (secure), thus your
960 >> applications search path would be:
962 >> /usr/local/lib LD_LIBRARY_PATH component - IGNORED
963 >> /usr/lib LD_LIBRARY_PATH component - IGNORED
964 >> /usr/local/lib RPATH - honored
965 >> /usr/lib RPATH - honored
967 >> the effect is that path 3 would be the first used, and this would
968 >> satisfy your resolv.so lookup.
970 >> In SunOS 5.4 we made the LD_LIBRARY_PATH a little more flexible.
971 >> People who developed setxid applications wanted to be able to alter
972 >> the library search path to some degree to allow for their own
973 >> testing and debugging mechanisms. It was decided that the only
974 >> secure way to do this was to allow a `trusted' path to be used in
975 >> LD_LIBRARY_PATH. The only trusted directory we presently define
976 >> is /usr/lib. Thus a set-user-ID root developer could play with some
977 >> alternative shared object implementations and place them in
978 >> /usr/lib (being root we assume they'ed have access to write in this
979 >> directory). This change was made as part of 1155380 - after a
980 >> *huge* amount of discussion regarding the security aspect of things.
982 >> So, in SunOS 5.4 your applications search path would be:
984 >> /usr/local/lib from LD_LIBRARY_PATH - IGNORED (untrustworthy)
985 >> /usr/lib from LD_LIBRARY_PATH - honored (trustworthy)
986 >> /usr/local/lib from RPATH - honored
987 >> /usr/lib from RPATH - honored
989 >> here, path 2 would be the first used.
991 Solaris 2.5.1 (SunOS 5.5.1) and 2.6 (SunOS 5.6)
992 Apparently Solaris 2.5.1 patch 103663-01 installs a new
993 /usr/include/resolv.h file that defines the __P macro without
994 checking to see if it is already defined. This new resolv.h is also
995 included in the Solaris 2.6 distribution. This causes compile
998 In file included from daemon.c:51:
999 /usr/include/resolv.h:208: warning: `__P' redefined
1000 cdefs.h:58: warning: this is the location of the previous definition
1002 These warnings can be safely ignored or you can create a resolv.h
1003 file in the obj.SunOS.5.5.1.* or obj.SunOS.5.6.* directory that reads:
1006 #include "/usr/include/resolv.h"
1008 This problem was fixed in Solaris 7 (Sun bug ID 4081053).
1010 Solaris 7 (SunOS 5.7)
1011 Solaris 7 includes LDAP libraries but the implementation was
1012 lacking a few things. The following settings can be placed in
1013 devtools/Site/site.SunOS.5.7.m4 if you plan on using those
1016 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1017 APPENDDEF(`confENVDEF', `-DLDAP_VERSION_MAX=3')
1018 APPENDDEF(`confLIBS', `-lldap')
1020 Also, Sun's patch 107555 is needed to prevent a crash in the call
1021 to ldap_set_option for LDAP_OPT_REFERRALS in ldapmap_setopts if
1022 LDAP support is compiled in sendmail.
1024 Solaris 8 and later (SunOS 5.8 and later)
1025 Solaris 8 and later can optionally install LDAP support. If you
1026 have installed the Entire Distribution meta-cluster, you can use
1027 the following in devtools/Site/site.SunOS.5.8.m4 (or other
1028 appropriately versioned file) to enable LDAP:
1030 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1031 APPENDDEF(`confLIBS', `-lldap')
1033 Solaris 9 and later (SunOS 5.9 and later)
1034 Solaris 9 and later have a revised LDAP library, libldap.so.5,
1035 which is derived from a Netscape implementation, thus requiring
1036 that SM_CONF_LDAP_MEMFREE be defined in conjunction with LDAPMAP:
1038 APPENDDEF(`confMAPDEF', `-DLDAPMAP')
1039 APPENDDEF(`confENVDEF', `-DSM_CONF_LDAP_MEMFREE')
1040 APPENDDEF(`confLIBS', `-lldap')
1043 If you are using dns for hostname resolution on Solaris, make sure
1044 that the 'dns' entry is last on the hosts line in
1045 '/etc/nsswitch.conf'. For example, use:
1047 hosts: nisplus files dns
1051 hosts: nisplus dns [NOTFOUND=return] files
1053 Note that 'nisplus' above is an illustration. The same comment
1054 applies no matter what naming services you are using. If you have
1055 anything other than dns last, even after "[NOTFOUND=return]",
1056 sendmail may not be able to determine whether an error was
1057 temporary or permanent. The error returned by the solaris
1058 gethostbyname() is the error for the last lookup used, and other
1059 naming services do not have the same concept of temporary failure.
1062 By default, the IDENT protocol is turned off on Ultrix. If you
1063 are running Ultrix 4.4 or later, or if you have included patch
1064 CXO-8919 for Ultrix 4.2 or 4.3 to fix the TCP problem, you can turn
1065 IDENT on in the configuration file by setting the "ident" timeout.
1067 The Ultrix 4.5 Y2K patch (ULTV45-022-1) has changed the resolver
1068 included in libc.a. Unfortunately, the __RES symbol hasn't changed
1069 and therefore, sendmail can no longer automatically detect the
1070 newer version. If you get a compiler error:
1072 /lib/libc.a(gethostent.o): local_hostname_length: multiply defined
1074 Then rebuild with this in devtools/Site/site.ULTRIX.m4:
1076 APPENDDEF(`conf_sendmail_ENVDEF', `-DNEEDLOCAL_HOSTNAME_LENGTH=0')
1078 Digital UNIX (formerly DEC OSF/1)
1079 If you are compiling on OSF/1 (DEC Alpha), you must use
1080 -L/usr/shlib (otherwise it core dumps on startup). You may also
1081 need -mld to get the nlist() function, although some versions
1082 apparently don't need this.
1084 Also, the enclosed makefile removed /usr/sbin/smtpd; if you need
1085 it, just create the link to the sendmail binary.
1087 On DEC OSF/1 3.2 or earlier, the MatchGECOS option doesn't work
1088 properly due to a bug in the getpw* routines. If you want to use
1089 this, use -DDEC_OSF_BROKEN_GETPWENT=1. The problem is fixed in 3.2C.
1091 Digital's mail delivery agent, /bin/mail (aka /bin/binmail), will
1092 only preserve the envelope sender in the "From " header if
1093 DefaultUserID is set to daemon. Setting this to mailnull will
1094 cause all mail to have the header "From mailnull ...". To use
1095 a different DefaultUserID, you will need to use a different mail
1096 delivery agent (such as mail.local found in the sendmail
1099 On Digital UNIX 4.0 and later, Berkeley DB 1.85 is included with the
1100 operating system and already has the ndbm.o module removed. However,
1101 Digital has modified the original Berkeley DB db.h include file.
1102 This results in the following warning while compiling map.c and udb.c:
1104 cc: Warning: /usr/include/db.h, line 74: The redefinition of the macro
1105 "__signed" conflicts with a current definition because the replacement
1106 lists differ. The redefinition is now in effect.
1107 #define __signed signed
1108 ------------------------^
1110 This warning can be ignored.
1112 Digital UNIX's linker checks /usr/ccs/lib/ before /usr/lib/.
1113 If you have installed a new version of BIND in /usr/include
1114 and /usr/lib, you will experience difficulties as Digital ships
1115 libresolv.a in /usr/ccs/lib/ as well. Be sure to replace both
1116 copies of libresolv.a.
1119 The header files on SGI IRIX are completely prototyped, and as
1120 a result you can sometimes get some warning messages during
1121 compilation. These can be ignored. There are two errors in
1122 deliver only if you are using gcc, both of the form ``warning:
1123 passing arg N of `execve' from incompatible pointer type''.
1124 Also, if you compile with -DNIS, you will get a complaint
1125 about a declaration of struct dom_binding in a prototype
1126 when compiling map.c; this is not important because the
1127 function being prototyped is not used in that file.
1129 In order to compile sendmail you will have had to install
1130 the developers' option in order to get the necessary include
1133 If you compile with -lmalloc (the fast memory allocator), you may
1134 get warning messages such as the following:
1136 ld32: WARNING 85: definition of _calloc in /usr/lib32/libmalloc.so
1137 preempts that definition in /usr/lib32/mips3/libc.so.
1138 ld32: WARNING 85: definition of _malloc in /usr/lib32/libmalloc.so
1139 preempts that definition in /usr/lib32/mips3/libc.so.
1140 ld32: WARNING 85: definition of _realloc in /usr/lib32/libmalloc.so
1141 preempts that definition in /usr/lib32/mips3/libc.so.
1142 ld32: WARNING 85: definition of _free in /usr/lib32/libmalloc.so
1143 preempts that definition in /usr/lib32/mips3/libc.so.
1144 ld32: WARNING 85: definition of _cfree in /usr/lib32/libmalloc.so
1145 preempts that definition in /usr/lib32/mips3/libc.so.
1147 These are unavoidable and innocuous -- just ignore them.
1149 According to Dave Sill <de5@ornl.gov>, there is a version of the
1150 Berkeley DB library patched to run on Irix 6.2 available from
1151 http://reality.sgi.com/ariel/freeware/#db .
1154 If you are using XFS filesystem, avoid using the -32 ABI switch to
1155 the cc compiler if possible.
1157 Broken inet_aton and inet_ntoa on IRIX using gcc: There's
1158 a problem with gcc on IRIX, i.e., gcc can't pass structs
1159 less than 16 bits long unless they are 8 bits; IRIX 6.2 has
1160 some other sized structs. See
1161 http://www.bitmechanic.com/mail-archives/mysql/current/0418.html
1162 This problem seems to be fixed by gcc v2.95.2, gcc v2.8.1
1163 is reported as broken. Check your gcc version for this bug
1164 before installing sendmail.
1167 The IRIX 6.5.4 version of /bin/m4 does not work properly with
1168 sendmail. Either install fw_m4.sw.m4 off the Freeware_May99 CD and
1169 use /usr/freeware/bin/m4 or install and use GNU m4.
1172 NEXTSTEP 3.3 and earlier ship with the old DBM library. Also,
1173 Berkeley DB does not currently run on NEXTSTEP.
1175 If you are compiling on NEXTSTEP, you will have to create an
1176 empty file "unistd.h" and create a file "dirent.h" containing:
1178 #include <sys/dir.h>
1179 #define dirent direct
1181 (devtools/OS/NeXT should try to do both of these for you.)
1183 Apparently, there is a bug in getservbyname on Nextstep 3.0
1184 that causes it to fail under some circumstances with the
1185 message "SYSERR: service "smtp" unknown" logged. You should
1186 be able to work around this by including the line:
1192 BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0
1193 The "m4" from BSDI won't handle the config files properly.
1194 I haven't had a chance to test this myself.
1196 The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config
1197 files properly. One must use either GNU m4 1.1 or the PD-M4
1198 recently posted in comp.os.386bsd.bugs (and maybe others).
1199 NetBSD-current includes the PD-M4 (as stated in the NetBSD file
1202 FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to
1203 use it (look into devtools/OS/FreeBSD). NetBSD-current may have
1204 it too but it has not been verified.
1206 The latest version of Berkeley DB uses a different naming
1207 scheme than the version that is supplied with your release. This
1208 means you will be able to use the current version of Berkeley DB
1209 with sendmail as long you use the new db.h when compiling
1210 sendmail and link it against the new libdb.a or libdb.so. You
1211 should probably keep the original db.h in /usr/include and the
1212 new db.h in /usr/local/include.
1215 If you are running a "virgin" version of 4.3BSD, you'll have
1216 a very old resolver and be missing some header files. The
1217 header files are simple -- create empty versions and everything
1218 will work fine. For the resolver you should really port a new
1219 version (4.8.3 or later) of the resolver; 4.9 is available on
1220 gatekeeper.DEC.COM in pub/BSD/bind/4.9. If you are really
1221 determined to continue to use your old, buggy version (or as
1222 a shortcut to get sendmail working -- I'm sure you have the
1223 best intentions to port a modern version of BIND), you can
1224 copy ../contrib/oldbind.compat.c into sendmail and add the
1225 following to devtools/Site/site.config.m4:
1227 APPENDDEF(`confOBJADD', `oldbind.compat.o')
1229 OpenBSD (up to 2.9 Release), NetBSD, FreeBSD (up to 4.3-RELEASE)
1230 m4 from *BSD won't handle libsm/Makefile.m4 properly, since the
1231 maximum length for strings is too short. You need to use GNU m4
1232 or patch m4, see for example:
1233 http://FreeBSD.org/cgi/cvsweb.cgi/src/usr.bin/m4/eval.c.diff?r1=1.11&r2=1.12
1236 Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT)
1237 From: "Eric C. Hagberg" <hagberg@med.cornell.edu>
1238 Subject: Fix for A/UX ndbm
1240 I guess this isn't really a sendmail bug, however, it is something
1241 that A/UX users should be aware of when compiling sendmail 8.6.
1243 Apparently, the calls that sendmail is using to the ndbm routines
1244 in A/UX 3.0.x contain calls to "broken" routines, in that the
1245 aliases database will break when it gets "just a little big"
1246 (sorry I don't have exact numbers here, but it broke somewhere
1247 around 20-25 aliases for me.), making all aliases non-functional
1248 after exceeding this point.
1250 What I did was to get the gnu-dbm-1.6 package, compile it, and
1251 then re-compile sendmail with "-lgdbm", "-DNDBM", and using the
1252 ndbm.h header file that comes with the gnu-package. This makes
1253 things behave properly.
1254 [NOTE: see comment above about GDBM]
1256 I suppose porting the New Berkeley DB package is another route,
1257 however, I made a quick attempt at it, and found it difficult
1258 (not easy at least); the gnu-dbm package "configured" and
1261 [NOTE: Berkeley DB version 2.X runs on A/UX and can be used for
1265 From: Thomas Essebier <tom@stallion.oz.au>
1266 Organisation: Stallion Technologies Pty Ltd.
1268 It will probably help those who are trying to configure sendmail 8.6.9
1269 to know that if they are on SCO, they had better set
1271 or they will core dump as soon as they try to use the resolver.
1272 i.e., although SCO has _res.dnsrch defined, and is kinda BIND 4.8.3,
1273 it does not inititialise it, nor does it understand 'search' in
1277 According to SCO, the m4 which ships with UnixWare 2.1.2 is broken.
1278 We recommend installing GNU m4 before attempting to build sendmail.
1280 On some versions a bogus error value is listed if connections
1281 time out (large negative number). To avoid this explicitly set
1282 Timeout.connect to a reasonable value (several minutes).
1285 Doug Anderson <dlander@afterlife.ncsc.mil> has successfully run
1286 V8 on the DG/UX 5.4.2 and 5.4R3.x platforms under heavy usage.
1287 Originally, the DG /bin/mail program wasn't compatible with
1288 the V8 sendmail, since the DG /bin/mail requires the environment
1289 variable "_FORCE_MAIL_LOCAL_=yes" be set. Version 8.7 now includes
1290 this in the environment before invoking the local mailer. Some
1291 have used procmail to avoid this problem in the past. It works
1292 but some have experienced file locking problems with their DG/UX
1296 If you are compiling on Apollo, you will have to create an empty
1297 file "unistd.h" (for DomainOS 10.3 and earlier) and create a file
1298 "dirent.h" containing:
1300 #include <sys/dir.h>
1301 #define dirent direct
1303 (devtools/OS/DomainOS will attempt to do both of these for you.)
1306 Date: Mon, 24 Jan 1994 13:25:45 +0200
1307 From: Kimmo Suominen <Kimmo.Suominen@lut.fi>
1308 Subject: 8.6.5 w/ HP-UX 8.00 on s300
1310 Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (i.e.,
1311 a series 300 machine) running HP-UX 8.00.
1313 I was getting segmentation fault when delivering to a local user.
1314 With debugging I saw it was faulting when doing _free@libc... *sigh*
1315 It seems the new implementation of malloc on s300 is buggy as of 8.0,
1316 so I tried out the one in -lmalloc (malloc(3X)). With that it seems
1319 When linking, you will get the following error:
1321 ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a
1323 but you can just ignore it. You might want to add this info to the
1324 README file for the future...
1327 Something broke between versions 0.99.13 and 0.99.14 of Linux: the
1328 flock() system call gives errors. If you are running .14, you must
1329 not use flock. You can do this with -DHASFLOCK=0. We have also
1330 been getting complaints since version 2.4.X was released.
1331 sendmail 8.13 has changed the default locking method to fcntl()
1332 for Linux kernel version 2.4 and later. Be sure to update other
1333 sendmail related programs to match locking techniques (some
1334 examples, besides makemap and mail.local, include procmail, mailx,
1337 Around the inclusion of bind-4.9.3 & Linux libc-4.6.20, the
1338 initialization of the _res structure changed. If /etc/hosts.conf
1339 was configured as "hosts, bind" the resolver code could return
1340 "Name server failure" errors. This is supposedly fixed in
1341 later versions of libc (>= 4.6.29?), and later versions of
1342 sendmail (> 8.6.10) try to work around the problem.
1344 Some older versions (< 4.6.20?) of the libc/include files conflict
1345 with sendmail's version of cdefs.h. Deleting sendmail's version
1346 on those systems should be non-harmful, and new versions don't care.
1348 NOTE ON LINUX & BIND: By default, the Makefile generated for Linux
1349 includes header files in /usr/local/include and libraries in
1350 /usr/local/lib. If you've installed BIND on your system, the header
1351 files typically end up in the search path and you need to add
1352 "-lresolv" to the LIBS line in your Makefile. Really old versions
1353 may need to include "-l44bsd" as well (particularly if the link phase
1354 complains about missing strcasecmp, strncasecmp or strpbrk).
1355 Complaints about an undefined reference to `__dn_skipname' in
1356 domain.o are a sure sign that you need to add -lresolv to LIBS.
1357 Newer versions of Linux are basically threaded BIND, so you may or
1358 may not see complaints if you accidentally mix BIND
1359 headers/libraries with virginal libc. If you have BIND headers in
1360 /usr/local/include (resolv.h, etc) you *should* be adding -lresolv
1361 to LIBS. Data structures may change and you'd be asking for a
1364 A number of problems have been reported regarding the Linux 2.2.0
1365 kernel. So far, these problems have been tracked down to syslog()
1366 and DNS resolution. We believe the problem is with the poll()
1367 implementation in the Linux 2.2.0 kernel and poll()-aware versions
1368 of glib (at least up to 2.0.111).
1371 glibc 2.2.1 (and possibly other versions) changed the value of
1372 __RES in resolv.h but failed to actually provide the IPv6 API
1373 changes that the change implied. Therefore, compiling with
1377 1) Compile without -DNETINET6
1378 2) Build against a real BIND 8.2.2 include/lib tree
1379 3) Wait for glibc to fix it
1382 The AIX 4.X linker uses library paths specified during compilation
1383 using -L for run-time shared library searches. Therefore, it is
1384 vital that relative and unsafe directory paths not be using when
1385 compiling sendmail. Because of this danger, by default, compiles
1386 on AIX use the -blibpath option to limit shared libraries to
1387 /usr/lib and /lib. If you need to allow more directories, such as
1388 /usr/local/lib, modify your devtools/Site/site.AIX.4.2.m4,
1389 site.AIX.4.3.m4, and/or site.AIX.4.x.m4 file(s) and set confLDOPTS
1390 appropriately. For example:
1392 define(`confLDOPTS', `-blibpath:/usr/lib:/lib:/usr/local/lib')
1394 Be sure to only add (safe) system directories.
1396 The AIX version of GNU ld also exhibits this problem. If you are
1397 using that version, instead of -blibpath, use its -rpath option.
1400 gcc -Wl,-rpath /usr/lib -Wl,-rpath /lib -Wl,-rpath /usr/local/lib
1402 AIX 4.X If the test program t-event (and most others) in libsm fails,
1403 check your compiler settings. It seems that the flags -qnoro or
1404 -qnoroconst on some AIX versions trigger a compiler bug. Check
1405 your compiler settings or use cc instead of xlc.
1407 AIX 4.0-4.2, maybe some AIX 4.3 versions
1408 The AIX m4 implements a different mechanism for ifdef which is
1409 inconsistent with other versions of m4. Therefore, it will not
1410 work properly with the sendmail Build architecture or m4
1411 configuration method. To work around this problem, please use
1412 GNU m4 from ftp://ftp.gnu.org/pub/gnu/.
1413 The problem seems to be solved in AIX 4.3.3 at least.
1416 From: Valdis.Kletnieks@vt.edu
1417 Date: Sun, 02 Jul 2000 03:58:02 -0400
1419 Under AIX 4.3.3, after applying bos.adt.include 4.3.3.12 to close the
1420 BIND 8.2.2 security holes, you can no longer build with -DNETINET6
1421 because they changed the value of __RES in resolv.h but failed to
1422 actually provide the API changes that the change implied.
1425 1) Compile without -DNETINET6
1426 2) Build against a real BIND 8.2.2 include/lib tree
1427 3) Wait for IBM to fix it
1430 This version of sendmail does not support MB, MG, and MR resource
1431 records, which are supported by AIX sendmail.
1433 Several people have reported that the IBM-supplied named returns
1434 fairly random results -- the named should be replaced. It is not
1435 necessary to replace the resolver, which will simplify installation.
1436 A new BIND resolver can be found at http://www.isc.org/isc/.
1439 The supplied load average code only works correctly for AIX 3.2.x.
1440 For 3.1, use -DLA_TYPE=LA_SUBR and get the latest ``monitor''
1441 package by Jussi Maki <jmaki@hut.fi> from ftp.funet.fi in the
1442 directory pub/unix/AIX/rs6000/monitor-1.12.tar.Z; use the loadavgd
1443 daemon, and the getloadavg subroutine supplied with that package.
1444 If you don't care about load average throttling, just turn off
1445 load average checking using -DLA_TYPE=LA_ZERO.
1448 RISC/os from MIPS is a merged AT&T/Berkeley system. When you
1449 compile on that platform you will get duplicate definitions
1450 on many files. You can ignore these.
1452 System V Release 4 Based Systems
1453 There is a single devtools OS that is intended for all SVR4-based
1454 systems (built from devtools/OS/SVR4). It defines __svr4__,
1455 which is predefined by some compilers. If your compiler already
1456 defines this compile variable, you can delete the definition from
1457 the generated Makefile or create a devtools/Site/site.config.m4
1460 It's been tested on Dell Issue 2.2.
1463 Date: Mon, 06 Dec 1993 10:42:29 EST
1464 From: "Kimmo Suominen" <kim@grendel.lut.fi>
1465 Message-ID: <2d0352f9.lento29@lento29.UUCP>
1466 To: eric@cs.berkeley.edu
1467 Cc: sendmail@cs.berkeley.edu
1468 Subject: Notes for DELL SVR4
1472 Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4. I ran
1473 across these things when helping out some people who contacted me by
1476 1) Use gcc 2.4.5 (or later?). Dell distributes gcc 2.1 with their
1477 Issue 2.2 Unix. It is too old, and gives you problems with
1478 clock.c, because sigset_t won't get defined in <sys/signal.h>.
1479 This is due to a problematic protection rule in there, and is
1480 fixed with gcc 2.4.5.
1482 2) If you don't use the new Berkeley DB (-DNEWDB), then you need
1483 to add "-lc -lucb" to the libraries to link with. This is because
1484 the -ldbm distributed by Dell needs the bcopy, bcmp and bzero
1485 functions. It is important that you specify both libraries in
1486 the given order to be sure you only get the BSTRING functions
1487 from the UCB library (and not the signal routines etc.).
1489 3) Don't leave out "-lelf" even if compiling with "-lc -lucb".
1490 The UCB library also has another copy of the nlist routines,
1491 but we do want the ones from "-lelf".
1493 If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they
1494 can use anonymous ftp to fetch them from lut.fi in the /kim directory.
1495 They are copies of what I use on grendel.lut.fi, and offering them
1496 does not imply that I would also support them. I have sent the DB
1497 port for SVR4 back to Keith Bostic for inclusion in the official
1498 distribution, but I haven't heard anything from him as of today.
1500 - gcc-2.4.5-svr4.tar.gz (gcc 2.4.5 and the corresponding libg++)
1501 - db-1.72.tar.gz (with source, objects and a installed copy)
1506 * Kimmo.Suominen@lut.fi * SysVr4 enthusiast at GRENDEL.LUT.FI *
1507 * KIM@FINFILES.BITNET * Postmaster and Hostmaster at LUT.FI *
1508 * + 358 200 865 718 * Unix area moderator at NIC.FUNET.FI *
1510 ConvexOS 10.1 and below
1511 In order to use the name server, you must create the file
1512 /etc/use_nameserver. If this file does not exist, the call
1513 to res_init() will fail and you will have absolutely no
1514 access to DNS, including MX records.
1517 In order to get UTS to work, you will have to port BIND 4.9.
1518 The vendor's BIND is reported to be ``totally inadequate.''
1519 See sendmail/contrib/AmdahlUTS.patch for the patches necessary
1520 to get BIND 4.9 compiled for UTS.
1523 According to Alexander Kolbasov <sasha@unitech.gamma.ru>,
1524 the m4 on UnixWare 2.0 (still in Beta) will core dump on the
1525 config files. GNU m4 and the m4 from UnixWare 1.x both work.
1527 According to Larry Rosenman <ler@lerami.lerctr.org>:
1529 UnixWare 2.1.[23]'s m4 chokes (not obviously) when
1530 processing the 8.9.0 cf files.
1532 I had a LOCAL_RULE_0 that wound up AFTER the
1533 SBasic_check_rcpt rules using the SCO supplied M4.
1537 Some people have reported that the -O flag on UNICOS can cause
1538 problems. You may want to turn this off if you have problems
1539 running sendmail. Reported by Jerry G. DeLapp <jgd@acl.lanl.gov>.
1541 Darwin/Mac OS X (10.X.X)
1542 The linker errors produced regarding getopt() and its associated
1543 variables can safely be ignored.
1545 From Mike Zimmerman <zimmy@torrentnet.com>:
1547 From scratch here is what Darwin users need to do to the standard
1548 10.0.0, 10.0.1 install to get sendmail working.
1549 From http://www.macosx.com/forums/showthread.php?s=6dac0e9e1f3fd118a4870a8a9b559491&threadid=2242:
1550 1. chmod g-w / /private /private/etc
1551 2. Properly set HOSTNAME in /etc/hostconfig to your FQDN:
1552 HOSTNAME=-my.domain.com-
1553 3. Edit /etc/rc.boot:
1554 hostname my.domain.com
1555 domainname domain.com
1556 4. Edit /System/Library/StartupItems/Sendmail/Sendmail:
1557 Remove the "&" after the sendmail command:
1558 /usr/sbin/sendmail -bd -q1h
1560 From Carsten Klapp <carsten.klapp@home.com>:
1562 The easiest workaround is to remove the group-writable permission
1563 for the root directory and the symbolic /etc inherits this
1564 change. While this does fix sendmail, the unfortunate side-effect
1565 is the OS X admin will no longer be able to manipulate icons in the
1566 top level of the Startup disk unless logged into the GUI as the
1569 In applying the alternate workaround, care must be taken while
1570 swapping the symlink /etc with the directory /private/etc. In all
1571 likelihood any admin who is concerned with this sendmail error has
1572 enough experience to not accidentally harm anything in the process.
1574 a. Swap the /etc symlink with /private/etc (as superuser):
1576 mv /private/etc /etc
1577 ln -s /etc /private/etc
1579 b. Set / to group unwritable (as superuser):
1582 Darwin/Mac OS X (10.1.5)
1583 Apple's upgrade to sendmail 8.12 is incorrectly configured. You
1584 will need to manually fix it up by doing the following:
1586 1. chown smmsp:smmsp /var/spool/clientmqueue
1587 2. chmod 2770 /var/spool/clientmqueue
1588 3. chgrp smmsp /usr/sbin/sendmail
1589 4. chmod g+s /usr/sbin/sendmail
1591 From Daniel J. Luke <dluke@geeklair.net>:
1593 It appears that setting the sendmail.cf property in
1594 /locations/sendmail in NetInfo on Mac OS X 10.1.5 with sendmail
1595 8.12.4 causes 'bad things' to happen.
1597 Specifically sendmail instances that should be getting their config
1598 from /etc/mail/submit.cf don't (so mail/mutt/perl scripts which
1599 open pipes to sendmail stop working as sendmail tries to write to
1600 /var/spool/mqueue and cannot as sendmail is no longer suid root).
1602 Removing the entry from NetInfo fixes this problem.
1605 I'm told that GNU getopt has a problem in that it gets confused
1606 by the double call. Use the version in conf.c instead.
1608 BIND 4.9.2 and Ultrix
1609 If you are running on Ultrix, be sure you read conf/Info.Ultrix
1610 in the BIND distribution very carefully -- there is information
1611 in there that you need to know in order to avoid errors of the
1614 /lib/libc.a(gethostent.o): sethostent: multiply defined
1615 /lib/libc.a(gethostent.o): endhostent: multiply defined
1616 /lib/libc.a(gethostent.o): gethostbyname: multiply defined
1617 /lib/libc.a(gethostent.o): gethostbyaddr: multiply defined
1619 during the link stage.
1622 BIND 8.X returns HOST_NOT_FOUND instead of TRY_AGAIN on temporary
1623 DNS failures when trying to find the hostname associated with an IP
1624 address (gethostbyaddr()). This can cause problems as
1625 $&{client_name} based lookups in class R ($=R) and the access
1626 database won't succeed.
1628 This will be fixed in BIND 8.2.1. For earlier versions, this can
1629 be fixed by making "dns" the last name service queried for host
1630 resolution in /etc/irs.conf:
1632 hosts local continue
1636 Some compilers (notably gcc) claim to be ANSI C but do not
1637 include the ANSI-required routine "strtoul". If your compiler
1638 has this problem, you will get an error in srvrsmtp.c on the
1641 # ifdef defined(__STDC__) && !defined(BROKEN_ANSI_LIBRARY)
1642 e->e_msgsize = strtoul(vp, (char **) NULL, 10);
1644 e->e_msgsize = strtol(vp, (char **) NULL, 10);
1647 You can use -DBROKEN_ANSI_LIBRARY to get around this problem.
1650 Date: 23 Sep 1995 23:56:07 GMT
1651 Message-ID: <95925101334.~INN-AUMa00187.comp-news@dl.ac.uk>
1652 From: alansz@mellers1.psych.berkeley.edu (Alan Schwartz)
1653 Subject: Listproc 6.0c + Sendmail 8.7 [Helpful hint]
1655 Just upgraded to sendmail 8.7, and discovered that listproc 6.0c
1656 breaks, because it, by default, sends a blank "HELO" rather than
1657 a "HELO hostname" when using the 'system' or 'telnet' mail method.
1659 The fix is to include -DZMAILER in the compilation, which will
1660 cause it to use "HELO hostname" (which Z-mail apparently requires
1664 OpenSSL versions prior to 0.9.6 use a macro named Free which
1665 conflicts with existing macro names on some platforms, such as
1667 Do not use 0.9.3, but OpenSSL 0.9.5a or later if compatible with
1671 PH support is provided by Mark Roth <roth@uiuc.edu>. The map is
1672 described at http://www-dev.cites.uiuc.edu/sendmail/ .
1674 NOTE: The "spacedname" pseudo-field which was used by earlier
1675 versions of the PH map code is no longer supported! See the URL
1676 listed above for more information.
1678 Please contact Mark Roth for support and questions regarding the
1682 If you are using -DTCPWRAPPERS to get TCP Wrappers support you will
1683 also need to install libwrap.a and modify your site.config.m4 file
1684 or the generated Makefile to include -lwrap in the LIBS line
1685 (make sure that INCDIRS and LIBDIRS point to where the tcpd.h and
1686 libwrap.a can be found).
1688 TCP Wrappers is available at ftp://ftp.porcupine.org/pub/security/.
1690 If you have alternate MX sites for your site, be sure that all of
1691 your MX sites reject the same set of hosts. If not, a bad guy whom
1692 you reject will connect to your site, fail, and move on to the next
1693 MX site, which will accept the mail for you and forward it on to you.
1695 Regular Expressions (MAP_REGEX)
1696 If sendmail linking fails with:
1698 undefined reference to 'regcomp'
1700 or sendmail gives an error about a regular expression with:
1702 pattern-compile-error: : Operation not applicable
1704 Your libc does not include a running version of POSIX-regex. Use
1705 librx or regex.o from the GNU Free Software Foundation,
1706 ftp://ftp.gnu.org/pub/gnu/rx-?.?.tar.gz or
1707 ftp://ftp.gnu.org/pub/gnu/regex-?.?.tar.gz.
1708 You can also use the regex-lib by Henry Spencer,
1709 ftp://ftp.funet.fi/pub/languages/C/spencer/regex.shar.gz
1710 Make sure, your compiler reads regex.h from the distribution,
1711 not from /usr/include, otherwise sendmail will dump a core.
1718 The manual pages have been written against the -man macros, and
1719 should format correctly with any reasonable *roff.
1726 As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log
1727 some debugging output (logged at LOG_DEBUG severity). The
1728 information dumped is:
1730 * The value of the $j macro.
1731 * A warning if $j is not in the set $=w.
1732 * A list of the open file descriptors.
1733 * The contents of the connection cache.
1734 * If ruleset 89 is defined, it is evaluated and the results printed.
1736 This allows you to get information regarding the runtime state of the
1737 daemon on the fly. This should not be done too frequently, since
1738 the process of rewriting may lose memory which will not be recovered.
1739 Also, ruleset 89 may call non-reentrant routines, so there is a small
1740 non-zero probability that this will cause other problems. It is
1741 really only for debugging serious problems.
1743 A typical formulation of ruleset 89 would be:
1745 R$* $@ $>0 some test address
1748 +-----------------------------+
1749 | DESCRIPTION OF SOURCE FILES |
1750 +-----------------------------+
1752 The following list describes the files in this directory:
1754 Build Shell script for building sendmail.
1755 Makefile A convenience for calling ./Build.
1756 Makefile.m4 A template for constructing a makefile based on the
1757 information in the devtools directory.
1759 TRACEFLAGS My own personal list of the trace flags -- not guaranteed
1760 to be particularly up to date.
1761 alias.c Does name aliasing in all forms.
1762 aliases.5 Man page describing the format of the aliases file.
1763 arpadate.c A subroutine which creates ARPANET standard dates.
1764 bf.c Routines to implement memory-buffered file system using
1765 hooks provided by libsm now (formerly Torek stdio library).
1766 bf.h Buffered file I/O function declarations and
1767 data structure and function declarations for bf.c.
1768 collect.c The routine that actually reads the mail into a temp
1769 file. It also does a certain amount of parsing of
1771 conf.c The configuration file. This contains information
1772 that is presumed to be quite static and non-
1773 controversial, or code compiled in for efficiency
1774 reasons. Most of the configuration is in sendmail.cf.
1775 conf.h Configuration that must be known everywhere.
1776 control.c Routines to implement control socket.
1777 convtime.c A routine to sanely process times.
1778 daemon.c Routines to implement daemon mode.
1779 deliver.c Routines to deliver mail.
1780 domain.c Routines that interface with DNS (the Domain Name
1782 envelope.c Routines to manipulate the envelope structure.
1783 err.c Routines to print error messages.
1784 headers.c Routines to process message headers.
1785 helpfile An example helpfile for the SMTP HELP command and -bt mode.
1786 macro.c The macro expander. This is used internally to
1787 insert information from the configuration file.
1788 mailq.1 Man page for the mailq command.
1789 main.c The main routine to sendmail. This file also
1790 contains some miscellaneous routines.
1791 makesendmail A convenience for calling ./Build.
1792 map.c Support for database maps.
1793 mci.c Routines that handle mail connection information caching.
1794 milter.c MTA portions of the mail filter API.
1795 mime.c MIME conversion routines.
1796 newaliases.1 Man page for the newaliases command.
1797 parseaddr.c The routines which do address parsing.
1798 queue.c Routines to implement message queueing.
1799 readcf.c The routine that reads the configuration file and
1800 translates it to internal form.
1801 recipient.c Routines that manipulate the recipient list.
1802 sasl.c Routines to interact with Cyrys-SASL.
1803 savemail.c Routines which save the letter on processing errors.
1804 sendmail.8 Man page for the sendmail command.
1805 sendmail.h Main header file for sendmail.
1806 sfsasl.c I/O interface between SASL/TLS and the MTA.
1807 sfsasl.h Header file for sfsasl.c.
1808 shmticklib.c Routines for shared memory counters.
1809 sm_resolve.c Routines for DNS lookups (for DNS map type).
1810 sm_resolve.h Header file for sm_resolve.c.
1811 srvrsmtp.c Routines to implement server SMTP.
1812 stab.c Routines to manage the symbol table.
1813 stats.c Routines to collect and post the statistics.
1814 statusd_shm.h Data structure and function declarations for shmticklib.c.
1815 sysexits.c List of error messages associated with error codes
1817 sysexits.h List of error codes for systems that lack their own.
1818 timers.c Routines to provide microtimers.
1819 timers.h Data structure and function declarations for timers.h.
1820 tls.c Routines for TLS.
1821 trace.c The trace package. These routines allow setting and
1822 testing of trace flags with a high granularity.
1823 udb.c The user database interface module.
1824 usersmtp.c Routines to implement user SMTP.
1825 util.c Some general purpose routines used by sendmail.
1826 version.c The version number and information about this
1827 version of sendmail.
1829 (Version $Revision: 8.386 $, last update $Date: 2005/03/04 23:24:08 $ )
projects / dragonfly.git / blob