source: server/mail/postfix.xml@ 1f81eac

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Last change on this file since 1f81eac was 351881f, checked in by Bruce Dubbs <bdubbs@…>, 4 weeks ago

postfix does not accept a space after -D.
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1<?xml version="1.0" encoding="UTF-8"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!-- editors: upstream postfix is ftp only, some of the mirrors offer
8 https - http://www.porcupine.org/mirmon/postfix-source.html lists the
9 mirror status, some of the mirrors shown as http are actually https -->
10 <!ENTITY postfix-download-http "https://ghostarchive.org/postfix/postfix-release/official/postfix-&postfix-version;.tar.gz">
11 <!ENTITY postfix-download-ftp " ">
12 <!ENTITY postfix-md5sum "3eda9b945ed6cdf11ef58a731c574a04">
13 <!ENTITY postfix-size "4.7 MB">
14 <!ENTITY postfix-buildsize "208 MB">
15 <!ENTITY postfix-time "0.1 SBU (Using parallelism=4)">
16]>
17
18<sect1 id="postfix" xreflabel="Postfix-&postfix-version;">
19 <?dbhtml filename="postfix.html"?>
20
21
22 <title>Postfix-&postfix-version;</title>
23
24 <indexterm zone="postfix">
25 <primary sortas="a-Postfix">Postfix</primary>
26 </indexterm>
27
28 <sect2 role="package">
29 <title>Introduction to Postfix</title>
30
31 <para>
32 The <application>Postfix</application> package contains a Mail Transport
33 Agent (MTA). This is useful for sending email to other users of your host
34 machine. It can also be configured to be a central mail server for your
35 domain, a mail relay agent or simply a mail delivery agent to your local
36 Internet Service Provider.
37 </para>
38
39 &lfs122_checked;
40
41 <bridgehead renderas="sect3">Package Information</bridgehead>
42 <itemizedlist spacing="compact">
43 <listitem>
44 <para>
45 Download (HTTP): <ulink url="&postfix-download-http;"/>
46 </para>
47 </listitem>
48 <listitem>
49 <para>
50 Download (FTP): <ulink url="&postfix-download-ftp;"/>
51 </para>
52 </listitem>
53 <listitem>
54 <para>
55 Download MD5 sum: &postfix-md5sum;
56 </para>
57 </listitem>
58 <listitem>
59 <para>
60 Download size: &postfix-size;
61 </para>
62 </listitem>
63 <listitem>
64 <para>
65 Estimated disk space required: &postfix-buildsize;
66 </para>
67 </listitem>
68 <listitem>
69 <para>
70 Estimated build time: &postfix-time;
71 </para>
72 </listitem>
73 </itemizedlist>
74<!--
75 <bridgehead renderas="sect3">Additional Downloads</bridgehead>
76 <itemizedlist spacing="compact">
77 <listitem>
78 <para>
79 Required patch:
80 <ulink url="&patch-root;/postfix-&postfix-version;-glibc230_fix-1.patch"/>
81 </para>
82 </listitem>
83 </itemizedlist>
84-->
85 <bridgehead renderas="sect3">Postfix Dependencies</bridgehead>
86
87 <bridgehead renderas="sect4">Recommended</bridgehead>
88 <para role="recommended">
89 <xref linkend="cyrus-sasl"/>,
90 <xref linkend="libnsl"/>, and
91 <xref linkend="lmdb"/>
92 </para>
93
94 <bridgehead renderas="sect4">Optional</bridgehead>
95 <para role="optional">
96 <xref linkend="icu"/> for Email Address Internationalization (SMTPUTF8) support,
97 <xref linkend="mariadb"/> or <ulink url="https://www.mysql.com/">MySQL</ulink>,
98 <xref linkend="openldap"/>,
99 <xref linkend="pcre2"/>,
100 <xref linkend="postgresql"/>,
101 <xref linkend="sqlite"/>,
102 &berkeley-db;, and
103 <ulink url="https://cr.yp.to/cdb.html">CDB</ulink> or
104 <ulink url="https://www.corpit.ru/mjt/tinycdb.html">TinyCDB</ulink>
105 </para>
106
107 <para>
108 Note that <application>SQLite</application>,
109 <application>MySQL</application>, <application>PostgreSQL</application>
110 and <application>CDB</application> are only useful if there is a known
111 need for them.
112 </para>
113
114 <para condition="html" role="usernotes">
115 Editor Notes: <ulink url="&blfs-wiki;/postfix"/>
116 </para>
117 </sect2>
118
119 <sect2 role="installation">
120 <title>Installation of Postfix</title>
121
122 <sect3>
123 <title>Adding Users and Groups</title>
124
125 <para>
126 Before you compile the program, you need to create users and groups that
127 will be expected to be in place during the installation. Add the users
128 and groups with the following commands issued by the
129 <systemitem class="username">root</systemitem> user:
130 </para>
131
132<screen role="root"><userinput>groupadd -g 32 postfix &amp;&amp;
133groupadd -g 33 postdrop &amp;&amp;
134useradd -c "Postfix Daemon User" -d /var/spool/postfix -g postfix \
135 -s /bin/false -u 32 postfix &amp;&amp;
136chown -v postfix:postfix /var/mail</userinput></screen>
137 </sect3>
138
139 <sect3>
140 <title>Configuring the Build</title>
141
142 <para>
143 The README files are formatted to be read with a pager like
144 <application>less</application> or <application>more</application>.
145 If you want to use a text editor, make them legible with the
146 following sed:
147 </para>
148
149<screen><userinput>sed -i 's/.\x08//g' README_FILES/*</userinput></screen>
150
151 <para>
152 The <application>Postfix</application> source tree does not contain a
153 <filename>configure</filename> script, rather the makefile in the
154 top-level directory contains a <option>makefiles</option> target that
155 regenerates all the other makefiles in the build tree. If you wish to
156 use additional software such as a database back-end for virtual users,
157 or TLS/SSL authentication, you will need to regenerate the makefiles
158 using one or more of the appropriate <envar>CCARGS</envar> and
159 <envar>AUXLIBS</envar> settings listed below.
160 </para>
161
162 <note>
163 <para>
164 For all variants of the CCARGS you should ensure that '-DNO_NIS' is
165 specified so that the build does not attempt to access an rpcsvc
166 header which do not exist in BLFS. If &berkeley-db; is
167 not installed, '-DNO_DB' needs to be specified as well.
168 </para>
169 </note>
170
171 <para>
172 For more details read the readme files.
173 </para>
174
175 <para>
176 Initialize the <envar>CCARGS</envar> and <envar>AUXLIBS</envar>
177 according to the note above:
178 </para>
179
180<!-- This package does not accept a space between -D and the argument. -->
181
182<screen><userinput>CCARGS="-DNO_NIS -DNO_DB"
183AUXLIBS=""</userinput></screen>
184
185 <para>
186 Next, the <envar>CCARGS</envar> and the <envar>AUXLIBS</envar>
187 variables are filled with settings depending on the actual
188 system configuration. If an optional package is installed but
189 should <emphasis>not</emphasis> be included in the
190 <application>Postfix</application> build, simply skip the
191 corresponding <code>if [ ... ]; then</code> scriptlets.
192 </para>
193
194 <sect4>
195 <title>Cyrus-SASL</title>
196
197 <para>
198 To use <application>Cyrus-SASL</application> with
199 <application>Postfix</application>, use the following arguments:
200 </para>
201
202<screen><userinput>if [ -r /usr/lib/libsasl2.so ]; then
203 CCARGS="$CCARGS -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl"
204 AUXLIBS="$AUXLIBS -lsasl2"
205fi</userinput></screen>
206 </sect4>
207
208 <sect4>
209 <title>LMDB</title>
210 <para>
211 To use <application>LMDB</application> with
212 <application>Postfix</application>, use the following arguments:
213 </para>
214
215<screen><userinput>if [ -r /usr/lib/liblmdb.so ]; then
216 CCARGS="$CCARGS -DHAS_LMDB"
217 AUXLIBS="$AUXLIBS -llmdb"
218fi</userinput></screen>
219 </sect4>
220
221 <sect4>
222 <title>OpenLDAP</title>
223
224 <para>
225 To use <application>OpenLDAP</application> with
226 <application>Postfix</application>, use the following arguments:
227 </para>
228
229<screen><userinput>if [ -r /usr/lib/libldap.so -a -r /usr/lib/liblber.so ]; then
230 CCARGS="$CCARGS -DHAS_LDAP"
231 AUXLIBS="$AUXLIBS -lldap -llber"
232fi</userinput></screen>
233
234 </sect4>
235
236 <sect4>
237 <title>Sqlite</title>
238
239 <para>
240 To use <application>Sqlite</application> with
241 <application>Postfix</application>, use the following arguments:
242 </para>
243
244<screen><userinput>if [ -r /usr/lib/libsqlite3.so ]; then
245 CCARGS="$CCARGS -DHAS_SQLITE"
246 AUXLIBS="$AUXLIBS -lsqlite3 -lpthread"
247fi</userinput></screen>
248
249 </sect4>
250
251 <sect4>
252 <title>MySQL</title>
253
254 <para>
255 To use <application>MySQL</application> with
256 <application>Postfix</application>, use the following arguments:
257 </para>
258
259<screen><userinput>if [ -r /usr/lib/libmysqlclient.so ]; then
260 CCARGS="$CCARGS -DHAS_MYSQL -I/usr/include/mysql"
261 AUXLIBS="$AUXLIBS -lmysqlclient -lz -lm"
262fi</userinput></screen>
263
264 </sect4>
265
266 <sect4>
267 <title>PostgreSQL</title>
268
269 <para>
270 To use <application>PostgreSQL</application> with
271 <application>Postfix</application>, use the following arguments:
272 </para>
273
274<screen><userinput>if [ -r /usr/lib/libpq.so ]; then
275 CCARGS="$CCARGS -DHAS_PGSQL -I/usr/include/postgresql"
276 AUXLIBS="$AUXLIBS -lpq -lz -lm"
277fi</userinput></screen>
278
279 </sect4>
280
281 <sect4>
282 <title>CDB/TinyCDB</title>
283
284 <para>
285 To use <application>CDB</application> or
286 <application>TinyCDB</application> with
287 <application>Postfix</application>, use the following arguments:
288 </para>
289
290<screen><literal>if [ -r <replaceable>&lt;/path/to/CDB&gt;</replaceable>/libcdb.a ]; then
291 CCARGS="$CCARGS -DHAS_CDB"
292 AUXLIBS="$AUXLIBS <replaceable>&lt;/path/to/CDB&gt;</replaceable>/libcdb.a"
293fi</literal></screen>
294
295 </sect4>
296
297 <sect4>
298 <title>StartTLS Authentication</title>
299
300 <para>
301 To use <application>OpenSSL</application> with
302 <application>Postfix</application>, use the following arguments:
303 </para>
304
305<screen><userinput>if [ -r /usr/lib/libssl.so -a -r /usr/lib/libcrypto.so ]; then
306 CCARGS="$CCARGS -DUSE_TLS -I/usr/include/openssl/"
307 AUXLIBS="$AUXLIBS -lssl -lcrypto"
308fi</userinput></screen>
309 <para>
310 <application>OpenSSL</application> is installed by LFS so it
311 should be always there. The <code>if ... then</code> is here
312 just for consistency.
313 </para>
314 </sect4>
315
316 </sect3>
317
318 <sect3>
319 <title>Installing Postfix</title>
320
321 <para>
322 There might be duplicate settings in <envar>AUXLIBS</envar>
323 like <code>-lm</code> when both, <application>MariaDB</application>
324 and <application>PostgreSQL</application> are used. They do
325 not harm. Install <application>Postfix</application> by
326 running the following commands:
327 </para>
328
329<screen><userinput>make CCARGS="$CCARGS" AUXLIBS="$AUXLIBS" makefiles &amp;&amp;
330make</userinput></screen>
331
332 <!-- There is a test suite, but it fails a lot. It seems to need
333 the host to be specifically setup for the tests.
334 Run with `make tests' and `make root_tests' -->
335 <para>
336 This package does not come with a useful test suite.
337 </para>
338
339 <para>
340 Now, as the <systemitem class="username">root</systemitem> user:
341 </para>
342
343<!-- dev note: sh postfix-install -non-interactive install_root=<DESTDIR> ... -->
344
345<screen role="root"><userinput>sh postfix-install -non-interactive \
346 daemon_directory=/usr/lib/postfix \
347 manpage_directory=/usr/share/man \
348 html_directory=/usr/share/doc/postfix-&postfix-version;/html \
349 readme_directory=/usr/share/doc/postfix-&postfix-version;/readme</userinput></screen>
350
351 </sect3>
352
353 </sect2>
354
355 <sect2 role="commands">
356 <title>Command Explanations</title>
357
358 <para>
359 <command>make makefiles</command>: This command rebuilds the makefiles
360 throughout the source tree to use the options contained in the
361 <envar>CCARGS</envar> and <envar>AUXLIBS</envar> variables.
362 </para>
363
364 <para>
365 <command>sh postfix-install -non-interactive</command>: This keeps the
366 install script from asking any questions, thereby accepting default
367 destination directories in all but the few cases. If the
368 <option>html_directory</option> and <option>readme_directory</option>
369 options are not set then the documentation will not be installed.
370 </para>
371
372 <para>
373 <option>CCARGS="-DNO_EAI ..."</option>: this will turn off SMTPUTF8
374 support, for example if the rest of your email address infrastructure
375 cannot handle UTF-8 email addresses and message header values.
376 </para>
377
378 </sect2>
379
380 <sect2 role="configuration">
381 <title>Configuring Postfix</title>
382
383 <sect3 id="postfix-config">
384 <title>Config Files</title>
385
386 <para>
387 <filename>/etc/aliases</filename>,
388 <filename>/etc/postfix/main.cf</filename>, and
389 <filename>/etc/postfix/master.cf</filename>
390 </para>
391
392 <indexterm zone="postfix postfix-config">
393 <primary sortas="e-etc-aliases">/etc/aliases</primary>
394 </indexterm>
395
396 <indexterm zone="postfix postfix-config">
397 <primary sortas="e-etc-postfix-star">/etc/postfix/*</primary>
398 </indexterm>
399
400 </sect3>
401
402 <sect3>
403 <title>Configuration Information</title>
404
405 <para>
406 Create (or append to an existing) <filename>/etc/aliases</filename>
407 with the following command. Change
408 <replaceable>&lt;LOGIN&gt;</replaceable> to your non-root login
409 identity so mail addressed to
410 <systemitem class="username">root</systemitem> can be forwarded to you.
411 As the <systemitem class="username">root</systemitem> user:
412 </para>
413
414<screen role="root"><userinput>cat &gt;&gt; /etc/aliases &lt;&lt; "EOF"
415<literal># Begin /etc/aliases
416
417MAILER-DAEMON: postmaster
418postmaster: root
419
420root: <replaceable>&lt;LOGIN&gt;</replaceable>
421# End /etc/aliases</literal>
422EOF</userinput></screen>
423
424 <para>
425 To protect an existing <filename>/etc/aliases</filename> file,
426 the above command appends these aliases to it if it exists. This file
427 should be checked and duplicate aliases removed, if present.
428 </para>
429
430 <para>
431 The BLFS editors recommend to use LMDB instead of Berkeley DB for
432 Postfix tables. Add three lines into
433 <filename>/etc/postfix/main.cf</filename> to make
434 <command>postmap</command> encode the lookup tables in the LMDB
435 format by default and to change the default hash setting of the
436 alias tables:
437 </para>
438
439<screen role="root"><userinput>echo 'default_database_type = lmdb' &gt;&gt; /etc/postfix/main.cf &amp;&amp;
440echo 'alias_database = lmdb:/etc/aliases' &gt;&gt; /etc/postfix/main.cf &amp;&amp;
441echo 'alias_maps = lmdb:/etc/aliases' &gt;&gt; /etc/postfix/main.cf</userinput></screen>
442
443 <para>
444 To protect your server against the recent SMTP smuggling attacks,
445 additional steps are required. Add two lines into
446 <filename>/etc/postfix/main.cf</filename> to disconnect remote SMTP
447 clients that send bare newlines in the DATA section, while also
448 allowing clients on your network with non-standard SMTP implementations
449 to still send mail:
450 </para>
451
452<screen role="root"><userinput>echo 'smtpd_forbid_bare_newline = normalize' &gt;&gt; /etc/postfix/main.cf &amp;&amp;
453echo 'smtpd_forbid_bare_newline_exclusions = $mynetworks' &gt;&gt; /etc/postfix/main.cf</userinput></screen>
454
455 <para>
456 Note that if you are following an online tutorial to configure
457 Postfix, the tutorial may refer to a lookup table with
458 <literal>hash:/path/to/lookup_table</literal>. You should replace
459 <literal>hash</literal> with <literal>lmdb</literal> in order to use
460 a lookup table encoded in the LMDB format.
461 </para>
462
463 <note>
464 <para>
465 The <filename>/etc/postfix/main.cf</filename> and
466 <filename>/etc/postfix/master.cf</filename> files must be personalized
467 for your system. The <filename>main.cf</filename> file needs your
468 fully qualified hostname. You will find that
469 <filename>main.cf</filename> is self documenting, so load it into your
470 editor to make the changes you need for your situation.
471 </para>
472 </note>
473
474 <note>
475 <para>
476 <application>Postfix</application> can also be set up to
477 run in a chroot jail. See the file in the source
478 <filename>examples/chroot-setup/LINUX2</filename> for details.
479 </para>
480 </note>
481
482 <para>
483 To ensure that all permissions are set properly, <application>postfix</application>
484 provides a tool which is to be run as the
485 <systemitem class="username">root</systemitem> user:
486 </para>
487
488<screen role="nodump"><userinput>/usr/sbin/postfix -c /etc/postfix set-permissions</userinput></screen>
489
490 <para>
491 If you have an existing configuration, you can run the
492 <command>postfix</command> utility to add any necessary definitions to
493 your existing files. As the
494 <systemitem class="username">root</systemitem> user:
495 </para>
496
497<screen role="nodump"><userinput>/usr/sbin/postfix upgrade-configuration</userinput></screen>
498
499 <para>
500 Before starting <application>Postfix</application>, you should check
501 that your configuration and file permissions will work properly. Run the
502 following commands as the <systemitem class="username">root</systemitem>
503 user to check and start your <application>Postfix</application> server:
504 </para>
505
506<screen role="nodump"><userinput>/usr/sbin/postfix check &amp;&amp;
507/usr/sbin/postfix start</userinput></screen>
508
509 </sect3>
510
511 <sect3 id="postfix-init">
512 <title><phrase revision="sysv">Boot Script</phrase>
513 <phrase revision="systemd">Systemd Unit</phrase></title>
514
515 <para>
516 To automate the running of Postfix at startup, install the
517 <phrase revision="sysv"><filename>/etc/rc.d/init.d/postfix</filename>
518 init script</phrase>
519 <phrase revision="systemd"><filename>postfix.service</filename>
520 unit</phrase> included in the
521 <xref linkend="bootscripts" revision="sysv"/>
522 <xref linkend="systemd-units" revision="systemd"/> package:
523 </para>
524
525 <indexterm zone="postfix postfix-init">
526 <primary sortas="f-postfix">postfix</primary>
527 </indexterm>
528
529<screen role="root"><userinput>make install-postfix</userinput></screen>
530
531 </sect3>
532
533 </sect2>
534
535 <sect2 role="content">
536 <title>Contents</title>
537
538 <segmentedlist>
539 <segtitle>Installed Programs</segtitle>
540 <segtitle>Installed Libraries</segtitle>
541 <segtitle>Installed Directories</segtitle>
542
543 <seglistitem>
544 <seg>
545 mailq (symlink), newaliases (symlink), postalias, postcat, postconf,
546 postdrop, postfix, postkick, postlock, postlog, postmap, postmulti,
547 postqueue, postsuper, and sendmail
548 </seg>
549 <seg>
550 None
551 </seg>
552 <seg>
553 /{etc,usr/lib}/postfix,
554 /usr/share/doc/postfix-&postfix-version; and
555 /var/{lib,spool}/postfix
556 </seg>
557 </seglistitem>
558 </segmentedlist>
559
560 <variablelist>
561 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
562 <?dbfo list-presentation="list"?>
563 <?dbhtml list-presentation="table"?>
564
565 <varlistentry id="mailq">
566 <term><command>mailq</command></term>
567 <listitem>
568 <para>
569 A symlink to <filename>sendmail</filename>
570 </para>
571 <indexterm zone="postfix mailq">
572 <primary sortas="b-mailq">mailq</primary>
573 </indexterm>
574 </listitem>
575 </varlistentry>
576
577 <varlistentry id="newaliases">
578 <term><command>newaliases</command></term>
579 <listitem>
580 <para>
581 A symlink to <filename>sendmail</filename>
582 </para>
583 <indexterm zone="postfix newaliases">
584 <primary sortas="b-newaliases">newaliases</primary>
585 </indexterm>
586 </listitem>
587 </varlistentry>
588
589 <varlistentry id="postalias">
590 <term><command>postalias</command></term>
591 <listitem>
592 <para>
593 is a utility for <application>Postfix</application> alias database
594 maintenance
595 </para>
596 <indexterm zone="postfix postalias">
597 <primary sortas="b-postalias">postalias</primary>
598 </indexterm>
599 </listitem>
600 </varlistentry>
601
602 <varlistentry id="postcat">
603 <term><command>postcat</command></term>
604 <listitem>
605 <para>
606 Prints the contents of files from the
607 <application>Postfix</application> queue in human readable format
608 </para>
609 <indexterm zone="postfix postcat">
610 <primary sortas="b-postcat">postcat</primary>
611 </indexterm>
612 </listitem>
613 </varlistentry>
614
615 <varlistentry id="postconf">
616 <term><command>postconf</command></term>
617 <listitem>
618 <para>
619 Displays or changes the value of
620 <application>Postfix</application> configuration parameters
621 </para>
622 <indexterm zone="postfix postconf">
623 <primary sortas="b-postconf">postconf</primary>
624 </indexterm>
625 </listitem>
626 </varlistentry>
627
628 <varlistentry id="postdrop">
629 <term><command>postdrop</command></term>
630 <listitem>
631 <para>
632 Creates a file in the maildrop directory and copies its standard
633 input to the file
634 </para>
635 <indexterm zone="postfix postdrop">
636 <primary sortas="b-postdrop">postdrop</primary>
637 </indexterm>
638 </listitem>
639 </varlistentry>
640
641 <varlistentry id="postfix-bin">
642 <term><command>postfix</command></term>
643 <listitem>
644 <para>
645 is the <application>Postfix</application> control program
646 </para>
647 <indexterm zone="postfix postfix-bin">
648 <primary sortas="b-postfix">postfix</primary>
649 </indexterm>
650 </listitem>
651 </varlistentry>
652
653 <varlistentry id="postkick">
654 <term><command>postkick</command></term>
655 <listitem>
656 <para>
657 Sends requests to the specified service over a local transport
658 channel
659 </para>
660 <indexterm zone="postfix postkick">
661 <primary sortas="b-postkick">postkick</primary>
662 </indexterm>
663 </listitem>
664 </varlistentry>
665
666 <varlistentry id="postlock">
667 <term><command>postlock</command></term>
668 <listitem>
669 <para>
670 Locks a mail folder for exclusive use, and executes commands passed
671 to it
672 </para>
673 <indexterm zone="postfix postlock">
674 <primary sortas="b-postlock">postlock</primary>
675 </indexterm>
676 </listitem>
677 </varlistentry>
678
679 <varlistentry id="postlog">
680 <term><command>postlog</command></term>
681 <listitem>
682 <para>
683 A <application>Postfix</application>-compatible logging interface
684 for use in, for example, shell scripts
685 </para>
686 <indexterm zone="postfix postlog">
687 <primary sortas="b-postlog">postlog</primary>
688 </indexterm>
689 </listitem>
690 </varlistentry>
691
692 <varlistentry id="postmap">
693 <term><command>postmap</command></term>
694 <listitem>
695 <para>
696 Creates or queries one or more Postfix lookup tables, or updates an
697 existing one
698 </para>
699 <indexterm zone="postfix postmap">
700 <primary sortas="b-postmap">postmap</primary>
701 </indexterm>
702 </listitem>
703 </varlistentry>
704
705 <varlistentry id="postmulti">
706 <term><command>postmulti</command></term>
707 <listitem>
708 <para>
709 is the <application>Postfix</application> multi-instance manager.
710 It allows a system administrator to manage multiple
711 <application>Postfix</application> instances on a single host
712 </para>
713 <indexterm zone="postfix postmulti">
714 <primary sortas="b-postmulti">postmulti</primary>
715 </indexterm>
716 </listitem>
717 </varlistentry>
718
719 <varlistentry id="postqueue">
720 <term><command>postqueue</command></term>
721 <listitem>
722 <para>
723 The <application>Postfix</application> user interface for
724 queue management
725 </para>
726 <indexterm zone="postfix postqueue">
727 <primary sortas="b-postqueue">postqueue</primary>
728 </indexterm>
729 </listitem>
730 </varlistentry>
731
732 <varlistentry id="postsuper">
733 <term><command>postsuper</command></term>
734 <listitem>
735 <para>
736 The <application>Postfix</application> user interface for
737 superuser queue management
738 </para>
739 <indexterm zone="postfix postsuper">
740 <primary sortas="b-postsuper">postsuper</primary>
741 </indexterm>
742 </listitem>
743 </varlistentry>
744
745 <varlistentry id="sendmail-postfix">
746 <term><command>sendmail</command></term>
747 <listitem>
748 <para>
749 is the <application>Postfix</application> to
750 <application>Sendmail</application> compatibility interface
751 </para>
752 <indexterm zone="postfix sendmail-postfix">
753 <primary sortas="b-sendmail">sendmail</primary>
754 </indexterm>
755 </listitem>
756 </varlistentry>
757
758 </variablelist>
759
760 </sect2>
761
762</sect1>
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