source: server/mail/postfix.xml@ 438c11ab

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Last change on this file since 438c11ab was 438c11ab, checked in by Bruce Dubbs <bdubbs@…>, 12 years ago

Update to postfix-2.8.4.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@8938 af4574ff-66df-0310-9fd7-8a98e5e911e0
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1<?xml version="1.0" encoding="ISO-8859-1"?>
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 <!ENTITY postfix-download-http "http://postfix.energybeam.com/source/official/postfix-&postfix-version;.tar.gz">
8 <!ENTITY postfix-download-ftp "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-&postfix-version;.tar.gz">
9 <!ENTITY postfix-md5sum "a9fdd0f204e7ca0b7d32fd0b9f8f8c72">
10 <!ENTITY postfix-size "3.5 MB">
11 <!ENTITY postfix-buildsize "132 MB">
12 <!ENTITY postfix-time "0.4 SBU">
13]>
14
15<sect1 id="postfix" xreflabel="Postfix-&postfix-version;">
16 <?dbhtml filename="postfix.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>Postfix-&postfix-version;</title>
24
25 <indexterm zone="postfix">
26 <primary sortas="a-Postfix">Postfix</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to Postfix</title>
31
32 <para>The <application>Postfix</application> package contains a Mail
33 Transport Agent (MTA). This is useful for sending email to other users
34 of your host machine. It can also be configured to be a central mail
35 server for your domain, a mail relay agent or simply a mail delivery
36 agent to your local Internet Service Provider (ISP).</para>
37
38 &lfs70_checked;
39
40 <bridgehead renderas="sect3">Package Information</bridgehead>
41 <itemizedlist spacing="compact">
42 <listitem>
43 <para>Download (HTTP): <ulink url="&postfix-download-http;"/></para>
44 </listitem>
45 <listitem>
46 <para>Download (FTP): <ulink url="&postfix-download-ftp;"/></para>
47 </listitem>
48 <listitem>
49 <para>Download MD5 sum: &postfix-md5sum;</para>
50 </listitem>
51 <listitem>
52 <para>Download size: &postfix-size;</para>
53 </listitem>
54 <listitem>
55 <para>Estimated disk space required: &postfix-buildsize;</para>
56 </listitem>
57 <listitem>
58 <para>Estimated build time: &postfix-time;</para>
59 </listitem>
60 </itemizedlist>
61
62 <bridgehead renderas="sect3">Postfix Dependencies</bridgehead>
63
64 <bridgehead renderas="sect4">Required</bridgehead>
65 <para role="required"><xref linkend="db"/></para>
66
67 <bridgehead renderas="sect4">Optional</bridgehead>
68 <para role="optional">
69 <xref linkend="pcre"/>,
70 <xref linkend="openssl"/>,
71 <xref linkend="openldap"/>,
72 <xref linkend="cyrus-sasl"/>,
73 <xref linkend="mysql"/>,
74 <xref linkend="postgresql"/>, and
75 <ulink url="http://cr.yp.to/cdb.html">cdb</ulink> or
76 <ulink url="http://www.corpit.ru/mjt/tinycdb.html">TinyCDB</ulink>
77 </para>
78
79 <para>Note that mysql, postgresql, and cdb are only useful if
80 there is a known need for them.</para>
81
82 <para condition="html" role="usernotes">User Notes:
83 <ulink url="&blfs-wiki;/postfix"/></para>
84
85 </sect2>
86
87 <sect2 role="installation">
88 <title>Installation of Postfix</title>
89
90 <sect3>
91 <title>Configuring the Build</title>
92
93 <para>The <application>Postfix</application> source tree does not contain
94 a <filename>configure</filename> script, rather the makefile in the
95 top-level directory contains a <option>makefiles</option> target that
96 regenerates all the other makefiles in the build tree. If you wish to
97 use additional software such as a database back-end for virtual users, or
98 TLS/SSL authentication, you will need to regenerate the makefiles using
99 one or more of the appropriate <envar>CCARGS</envar> and
100 <envar>AUXLIBS</envar> settings listed below.</para>
101<!--
102 <para>Here is an example that combines the TLS and
103 <application>Cyrus-SASL</application> arguments:</para>
104
105<screen><userinput>make makefiles \
106CCARGS='-DUSE_TLS -DUSE_SASL_AUTH -DUSE_CYRUS_SASL \
107 -DDEF_DAEMON_DIR=\"/usr/lib/postfix\" \
108 -DDEF_MANPAGE_DIR=\"/usr/share/man\" \
109 -DDEF_HTML_DIR=\"/usr/share/doc/postfix-&postfix-version;/html\" \
110 -DDEF_README_DIR=\"/usr/share/doc/postfix-&postfix-version;/README\" \
111 -I/usr/include/openssl -I/usr/include/sasl' \
112 AUXLIBS='-lssl -lcrypto -lsasl2'</userinput></screen>
113-->
114 <sect4>
115 <title>Perl compatible regular expressions</title>
116
117 <para>To use <application>PCRE</application> with
118 <application>Postfix</application>, use the following argument:</para>
119
120<screen><literal>CCARGS='-DHAS_PCRE'</literal></screen>
121
122 </sect4>
123
124 <sect4>
125 <title>Cyrus-SASL</title>
126
127 <para>To use <application>Cyrus-SASL</application> with
128 <application>Postfix</application>, use the following arguments:</para>
129
130<screen><literal>CCARGS='-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl'
131AUXLIBS='-lsasl2'</literal></screen>
132
133 </sect4>
134
135<!--
136 <sect4>
137 <title>Berkeley DB</title>
138
139 <para>To use <application>Berkeley DB</application> with
140 <application>Postfix</application>, use the following
141 arguments:</para>
142
143<screen><literal>CCARGS='-DHAS_DB -I/usr/include'
144AUXLIBS='-L/usr/lib -ldb'</literal></screen>
145
146 </sect4>
147-->
148 <sect4>
149 <title>OpenLDAP</title>
150
151 <para>To use <application>OpenLDAP</application> with
152 <application>Postfix</application>, use the following
153 arguments:</para>
154
155<screen><literal>CCARGS='-DHAS_LDAP'
156AUXLIBS='-lldap -llber'</literal></screen>
157
158 </sect4>
159
160 <sect4>
161 <title>MySQL</title>
162
163 <para>To use <application>MySQL</application> with
164 <application>Postfix</application>, use the following
165 arguments:</para>
166
167<screen><literal>CCARGS='-DHAS_MYSQL -I/usr/include/mysql'
168AUXLIBS='-lmysqlclient -lz -lm'</literal></screen>
169
170 </sect4>
171
172 <sect4>
173 <title>PostgreSQL</title>
174
175 <para>To use <application>PostgreSQL</application> with
176 <application>Postfix</application>, use the following
177 arguments:</para>
178
179<screen><literal>CCARGS='-DHAS_PGSQL -I/usr/include/postgresql'
180AUXLIBS='-lpq -lz -lm'</literal></screen>
181
182 </sect4>
183
184 <sect4>
185 <title>CDB/TinyCDB</title>
186
187 <para>To use <application>CDB</application> or
188 <application>TinyCDB</application> with
189 <application>Postfix</application>, use the following
190 arguments:</para>
191
192<screen><literal>CCARGS='-DHAS_CDB'
193AUXLIBS='<replaceable>&lt;/path/to/CDB&gt;</replaceable>/libcdb.a'</literal></screen>
194
195 </sect4>
196
197 <sect4>
198 <title>StartTLS Authentication</title>
199
200 <para>To use <application>OpenSSL</application> with
201 <application>Postfix</application>, use the following
202 arguments:</para>
203
204<screen><literal>CCARGS='-DUSE_TLS -I/usr/include/openssl/'
205AUXLIBS='-lssl -lcrypto'</literal></screen>
206
207 </sect4>
208
209 </sect3>
210
211 <sect3>
212 <title>Installing Postfix</title>
213
214 <para>Before you compile the program, you need to create users and groups
215 that will be expected to be in place during the installation.
216 Add the users and groups with the following commands issued by the
217 <systemitem class='username'>root</systemitem> user:</para>
218
219<screen role="root"><userinput>groupadd -g 32 postfix &amp;&amp;
220groupadd -g 33 postdrop &amp;&amp;
221useradd -c "Postfix Daemon User" -d /dev/null -g postfix \
222 -s /bin/false -u 32 postfix &amp;&amp;
223chown -v postfix:postfix /var/mail</userinput></screen>
224
225 <para>Install <application>Postfix</application> by running the
226 following commands:</para>
227<!--
228<screen><userinput>make makefiles \
229CCARGS='-DDEF_DAEMON_DIR=\"/usr/lib/postfix\" \
230 -DDEF_MANPAGE_DIR=\"/usr/share/man\" \
231 -DDEF_HTML_DIR=\"/usr/share/doc/postfix-&postfix-version;/html\" \
232 -DDEF_README_DIR=\"/usr/share/doc/postfix-&postfix-version;/README\" \
233 <replaceable>&lt;additional args&gt;</replaceable>' \
234 <replaceable>&lt;AUXLIBS='additional args'&gt;</replaceable> &amp;&amp;
235make</userinput></screen>
236-->
237
238<screen><userinput>PF_CCARGS="-DDEF_DAEMON_DIR=\\\"/usr/lib/postfix\\\""
239PF_CCARGS="$PF_CCARGS -DDEF_MANPAGE_DIR=\\\"/usr/share/man\\\""
240PF_CCARGS="$PF_CCARGS -DDEF_HTML_DIR=\\\"/usr/share/doc/postfix-&postfix-version;/html\\\""
241PF_CCARGS="$PF_CCARGS -DDEF_README_DIR=\\\"/usr/share/doc/postfix-&postfix-version;/README\\\""
242PF_CCARGS="$PF_CCARGS -DHAS_PCRE"
243PF_CCARGS="$PF_CCARGS -DUSE_TLS -I/usr/include/openssl"
244
245PF_AUXLIBS="-lpcre -lssl -lcrypto"
246
247make makefiles CCARGS="$PF_CCARGS" AUXLIBS="$PF_AUXLIBS" &amp;&amp;
248make &amp;&amp;
249unset PF_CCARGS PF_AUXLIBS</userinput></screen>
250
251 <!-- There is a testsuite, but it fails a lot. It seems to need
252 the host to be specifically setup for the tests.
253 Run with `make tests' and `make root_tests' -->
254 <para>This package does not come with a test suite.</para>
255
256 <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
257
258<screen role='root'><userinput>sh postfix-install -non-interactive</userinput></screen>
259
260 </sect3>
261
262 </sect2>
263
264 <sect2 role="commands">
265 <title>Command Explanations</title>
266
267 <para><command>make makefiles</command>: This command rebuilds the
268 makefiles throughout the source tree to use the options contained in the
269 <envar>CCARGS</envar> and <envar>AUXLIBS</envar> variables.</para>
270
271 <para>\\\": This structure is used to get a literal \" into the variable
272 definition.</para>
273
274 <para><command>sh postfix-install -non-interactive</command>: This
275 keeps the install script from asking any questions, thereby accepting
276 default destination directories in all but the few cases mentioned in
277 the 'make makefiles' command.</para>
278
279 </sect2>
280
281 <sect2 role="configuration">
282 <title>Configuring Postfix</title>
283
284 <sect3 id="postfix-config">
285 <title>Config Files</title>
286
287 <para><filename>/etc/aliases</filename>,
288 <filename>/etc/postfix/main.cf</filename>, and
289 <filename>/etc/postfix/master.cf</filename></para>
290
291 <indexterm zone="postfix postfix-config">
292 <primary sortas="e-etc-aliases">/etc/aliases</primary>
293 </indexterm>
294
295 <indexterm zone="postfix postfix-config">
296 <primary sortas="e-etc-postfix-star">/etc/postfix/*</primary>
297 </indexterm>
298
299 </sect3>
300
301 <sect3>
302 <title>Configuration Information</title>
303
304<screen role="root"><userinput>cat &gt;&gt; /etc/aliases &lt;&lt; "EOF"
305<literal># Begin /etc/aliases
306
307MAILER-DAEMON: postmaster
308postmaster: root
309
310root: LOGIN
311# End /etc/aliases</literal>
312EOF</userinput></screen>
313
314 <note>
315 <para>To protect an existing <filename>/etc/aliases</filename> file,
316 the above command appends these aliases to it if it exists. This file
317 should be checked and duplicate aliases removed, if present.</para>
318 </note>
319
320 <para>The <filename>/etc/aliases</filename> file that was just created
321 or appended, the <filename>main.cf</filename> and the
322 <filename>master.cf</filename> must be personalized for your system.
323 The <filename>aliases</filename> file needs your non-root login identity
324 so mail addressed to <systemitem class="username">root</systemitem> can
325 be forwarded to you at the user level. The <filename>main.cf</filename>
326 file needs your fully qualified hostname. All of these edits can be done
327 with <command>sed</command> commands entered into the console with
328 appropriate substitutions of your non-root login name for
329 <replaceable>&lt;user&gt;</replaceable> and your fully qualified hostname for
330 <replaceable>&lt;localhost.localdomain&gt;</replaceable>. You will find the
331 <filename>main.cf</filename> file is self documenting, so load it into
332 your editor to make the changes you need for your situation.</para>
333
334<screen role="root"><userinput>sed -i "s/LOGIN/<replaceable>&lt;user&gt;</replaceable>/" /etc/aliases &amp;&amp;
335sed -i "s/#myhostname = host.domain.tld/myhostname = \
336 <replaceable>&lt;localhost.localdomain&gt;</replaceable>/" /etc/postfix/main.cf &amp;&amp;
337/usr/bin/newaliases</userinput></screen>
338
339 <para>If you have an existing configuration, you can run the
340 <command>postfix</command> utility to add any necessary definitions
341 to your existing files. As the
342 <systemitem class="username">root</systemitem> user:</para>
343
344<screen role="root"><userinput>/usr/sbin/postfix upgrade-configuration</userinput></screen>
345
346 <para>Before starting <application>Postfix</application>, you
347 should check that your configuration and file permissions will work
348 properly. Run the following commands as the
349 <systemitem class="username">root</systemitem> user to check and
350 start your <application>Postfix</application> server:</para>
351
352<screen role="root"><userinput>/usr/sbin/postfix check &amp;&amp;
353/usr/sbin/postfix start</userinput></screen>
354
355 </sect3>
356
357 <sect3 id="postfix-init">
358 <title>Boot Script</title>
359
360 <para>To automate the running of Postfix at startup, install the
361 <filename>/etc/rc.d/init.d/postfix</filename> init script included
362 in the <xref linkend="bootscripts"/> package.</para>
363
364 <indexterm zone="postfix postfix-init">
365 <primary sortas="f-postfix">postfix</primary>
366 </indexterm>
367
368<screen role="root"><userinput>make install-postfix</userinput></screen>
369
370 </sect3>
371
372 </sect2>
373
374 <sect2 role="content">
375 <title>Contents</title>
376
377 <segmentedlist>
378 <segtitle>Installed Programs</segtitle>
379 <segtitle>Installed Libraries</segtitle>
380 <segtitle>Installed Directories</segtitle>
381
382 <seglistitem>
383 <seg>anvil, bounce, cleanup, discard, error, flush, lmtp, local, mailq,
384 master, newaliases, nqmgr, oqmgr, pickup, pipe, postalias, postcat,
385 postconf, postdrop, postfix, postkick, postlock, postlog, postmap,
386 postqueue, postsuper, proxymap, qmgr, qmqpd, scache, sendmail, showq,
387 smtp, smtpd, spawn, tlsmgr, trivial-rewrite, verify, and virtual</seg>
388 <seg>None</seg>
389 <seg>/etc/postfix, /usr/lib/postfix and
390 /usr/share/doc/postfix-&postfix-version;</seg>
391 </seglistitem>
392 </segmentedlist>
393
394 <variablelist>
395 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
396 <?dbfo list-presentation="list"?>
397 <?dbhtml list-presentation="table"?>
398
399 <varlistentry id="anvil">
400 <term><command>anvil</command></term>
401 <listitem>
402 <para>Provides connection and rate request limiting.</para>
403 <indexterm zone="postfix anvil">
404 <primary sortas="b-anvil">anvil</primary>
405 </indexterm>
406 </listitem>
407 </varlistentry>
408
409 <varlistentry id="bounce">
410 <term><command>bounce</command></term>
411 <listitem>
412 <para>A daemon that maintains per-message log files with
413 non-delivery status information.</para>
414 <indexterm zone="postfix bounce">
415 <primary sortas="b-bounce">bounce</primary>
416 </indexterm>
417 </listitem>
418 </varlistentry>
419
420 <varlistentry id="cleanup">
421 <term><command>cleanup</command></term>
422 <listitem>
423 <para>A daemon that processes inbound mail, inserts it into the
424 incoming mail queue, and informs the queue manager of its
425 arrival.</para>
426 <indexterm zone="postfix cleanup">
427 <primary sortas="b-cleanup">cleanup</primary>
428 </indexterm>
429 </listitem>
430 </varlistentry>
431
432 <varlistentry id="discard">
433 <term><command>discard</command></term>
434 <listitem>
435 <para>Processes delivery requests from the queue manager that cannot
436 be delivered to the recipient.</para>
437 <indexterm zone="postfix discard">
438 <primary sortas="b-discard">discard</primary>
439 </indexterm>
440 </listitem>
441 </varlistentry>
442
443 <varlistentry id="error">
444 <term><command>error</command></term>
445 <listitem>
446 <para>A daemon that processes non-delivery requests from the
447 queue manager.</para>
448 <indexterm zone="postfix error">
449 <primary sortas="b-error">error</primary>
450 </indexterm>
451 </listitem>
452 </varlistentry>
453
454 <varlistentry id="flush">
455 <term><command>flush</command></term>
456 <listitem>
457 <para>A daemon that maintains a record of deferred mail by
458 destination.</para>
459 <indexterm zone="postfix flush">
460 <primary sortas="b-flush">flush</primary>
461 </indexterm>
462 </listitem>
463 </varlistentry>
464
465 <varlistentry id="lmtp">
466 <term><command>lmtp</command></term>
467 <listitem>
468 <para>A daemon that processes message delivery requests from the
469 queue manager.</para>
470 <indexterm zone="postfix lmtp">
471 <primary sortas="b-lmtp">lmtp</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="local">
477 <term><command>local</command></term>
478 <listitem>
479 <para>A daemon that processes delivery requests from the queue
480 manager to deliver mail to local recipients.</para>
481 <indexterm zone="postfix local">
482 <primary sortas="b-local">local</primary>
483 </indexterm>
484 </listitem>
485 </varlistentry>
486
487 <varlistentry id="mailq">
488 <term><command>mailq</command></term>
489 <listitem>
490 <para>A symlink to <filename>sendmail</filename>.</para>
491 <indexterm zone="postfix mailq">
492 <primary sortas="b-mailq">mailq</primary>
493 </indexterm>
494 </listitem>
495 </varlistentry>
496
497 <varlistentry id="master">
498 <term><command>master</command></term>
499 <listitem>
500 <para>The resident process that runs
501 <application>Postfix</application> daemons on demand.</para>
502 <indexterm zone="postfix master">
503 <primary sortas="b-master">master</primary>
504 </indexterm>
505 </listitem>
506 </varlistentry>
507
508 <varlistentry id="newaliases">
509 <term><command>newaliases</command></term>
510 <listitem>
511 <para>A symlink to <filename>sendmail</filename>.</para>
512 <indexterm zone="postfix newaliases">
513 <primary sortas="b-newaliases">newaliases</primary>
514 </indexterm>
515 </listitem>
516 </varlistentry>
517
518 <varlistentry id="nqmgr">
519 <term><command>nqmgr</command></term>
520 <listitem>
521 <para>A daemon that awaits the arrival of incoming mail and
522 arranges for its delivery.</para>
523 <indexterm zone="postfix nqmgr">
524 <primary sortas="b-nqmgr">nqmgr</primary>
525 </indexterm>
526 </listitem>
527 </varlistentry>
528
529 <varlistentry id="oqmgr">
530 <term><command>oqmgr</command></term>
531 <listitem>
532 <para>The old style queue manager. This will be removed soon.</para>
533 <indexterm zone="postfix oqmgr">
534 <primary sortas="b-oqmgr">oqmgr</primary>
535 </indexterm>
536 </listitem>
537 </varlistentry>
538
539 <varlistentry id="pickup">
540 <term><command>pickup</command></term>
541 <listitem>
542 <para>A daemon that waits for hints that new mail has been
543 dropped into the maildrop directory, and feeds it into the
544 <application>cleanup</application> daemon.</para>
545 <indexterm zone="postfix pickup">
546 <primary sortas="b-pickup">pickup</primary>
547 </indexterm>
548 </listitem>
549 </varlistentry>
550
551 <varlistentry id="pipe">
552 <term><command>pipe</command></term>
553 <listitem>
554 <para>A daemon that processes requests from the queue
555 manager to deliver messages to external commands.</para>
556 <indexterm zone="postfix pipe">
557 <primary sortas="b-pipe">pipe</primary>
558 </indexterm>
559 </listitem>
560 </varlistentry>
561
562 <varlistentry id="postalias">
563 <term><command>postalias</command></term>
564 <listitem>
565 <para>Creates or queries one or more
566 <application>Postfix</application> alias databases, or updates an
567 existing one.</para>
568 <indexterm zone="postfix postalias">
569 <primary sortas="b-postalias">postalias</primary>
570 </indexterm>
571 </listitem>
572 </varlistentry>
573
574 <varlistentry id="postcat">
575 <term><command>postcat</command></term>
576 <listitem>
577 <para>Prints the contents of the
578 <application>named</application> files in human readable format.</para>
579 <indexterm zone="postfix postcat">
580 <primary sortas="b-postcat">postcat</primary>
581 </indexterm>
582 </listitem>
583 </varlistentry>
584
585 <varlistentry id="postconf">
586 <term><command>postconf</command></term>
587 <listitem>
588 <para>Displays or changes the value of
589 <application>Postfix</application> configuration parameters.</para>
590 <indexterm zone="postfix postconf">
591 <primary sortas="b-postconf">postconf</primary>
592 </indexterm>
593 </listitem>
594 </varlistentry>
595
596 <varlistentry id="postdrop">
597 <term><command>postdrop</command></term>
598 <listitem>
599 <para>Creates a file in the maildrop directory and copies
600 it's standard input to the file.</para>
601 <indexterm zone="postfix postdrop">
602 <primary sortas="b-postdrop">postdrop</primary>
603 </indexterm>
604 </listitem>
605 </varlistentry>
606
607 <varlistentry id="postfix-bin">
608 <term><command>postfix</command></term>
609 <listitem>
610 <para>Controls the operation of the
611 <application>Postfix</application> mail system.</para>
612 <indexterm zone="postfix postfix-bin">
613 <primary sortas="b-postfix">postfix</primary>
614 </indexterm>
615 </listitem>
616 </varlistentry>
617
618 <varlistentry id="postkick">
619 <term><command>postkick</command></term>
620 <listitem>
621 <para>Sends requests to the specified service over a
622 local transport channel.</para>
623 <indexterm zone="postfix postkick">
624 <primary sortas="b-postkick">postkick</primary>
625 </indexterm>
626 </listitem>
627 </varlistentry>
628
629 <varlistentry id="postlock">
630 <term><command>postlock</command></term>
631 <listitem>
632 <para>Locks a mail folder for exclusive use, and executes
633 commands passed to it.</para>
634 <indexterm zone="postfix postlock">
635 <primary sortas="b-postlock">postlock</primary>
636 </indexterm>
637 </listitem>
638 </varlistentry>
639
640 <varlistentry id="postlog">
641 <term><command>postlog</command></term>
642 <listitem>
643 <para>A <application>Postfix</application>-compatible logging
644 interface for use in, for example, shell scripts.</para>
645 <indexterm zone="postfix postlog">
646 <primary sortas="b-postlog">postlog</primary>
647 </indexterm>
648 </listitem>
649 </varlistentry>
650
651 <varlistentry id="postmap">
652 <term><command>postmap</command></term>
653 <listitem>
654 <para>Creates or queries one or more Postfix lookup
655 tables, or updates an existing one.</para>
656 <indexterm zone="postfix postmap">
657 <primary sortas="b-postmap">postmap</primary>
658 </indexterm>
659 </listitem>
660 </varlistentry>
661
662 <varlistentry id="postqueue">
663 <term><command>postqueue</command></term>
664 <listitem>
665 <para>The <application>Postfix</application> user interface for
666 queue management.</para>
667 <indexterm zone="postfix postqueue">
668 <primary sortas="b-postqueue">postqueue</primary>
669 </indexterm>
670 </listitem>
671 </varlistentry>
672
673 <varlistentry id="postsuper">
674 <term><command>postsuper</command></term>
675 <listitem>
676 <para>The <application>Postfix</application> user interface for
677 superuser queue management.</para>
678 <indexterm zone="postfix postsuper">
679 <primary sortas="b-postsuper">postsuper</primary>
680 </indexterm>
681 </listitem>
682 </varlistentry>
683
684 <varlistentry id="proxymap">
685 <term><command>proxymap</command></term>
686 <listitem>
687 <para>Provides read-only table lookup services to other
688 <application>Postfix</application> processes.</para>
689 <indexterm zone="postfix proxymap">
690 <primary sortas="b-proxymap">proxymap</primary>
691 </indexterm>
692 </listitem>
693 </varlistentry>
694
695 <varlistentry id="qmgr">
696 <term><command>qmgr</command></term>
697 <listitem>
698 <para>A daemon that awaits the arrival of incoming mail and
699 arranges for its delivery.</para>
700 <indexterm zone="postfix qmgr">
701 <primary sortas="b-qmgr">qmgr</primary>
702 </indexterm>
703 </listitem>
704 </varlistentry>
705
706 <varlistentry id="qmqpd">
707 <term><command>qmqpd</command></term>
708 <listitem>
709 <para>A daemon that receives one message per connection, and
710 pipes it through the <application>cleanup</application> daemon, and
711 places it into the incoming queue.</para>
712 <indexterm zone="postfix qmqpd">
713 <primary sortas="b-qmqpd">qmqpd</primary>
714 </indexterm>
715 </listitem>
716 </varlistentry>
717
718 <varlistentry id="scache">
719 <term><command>scache</command></term>
720 <listitem>
721 <para>Maintains a connection cache used for sharing a connection
722 multiple times.</para>
723 <indexterm zone="postfix scache">
724 <primary sortas="b-scache">scache</primary>
725 </indexterm>
726 </listitem>
727 </varlistentry>
728
729 <varlistentry id="sendmail-postfix">
730 <term><command>sendmail</command></term>
731 <listitem>
732 <para>The <application>Postfix</application> to
733 <application>Sendmail</application> compatibility interface.</para>
734 <indexterm zone="postfix sendmail-postfix">
735 <primary sortas="b-sendmail">sendmail</primary>
736 </indexterm>
737 </listitem>
738 </varlistentry>
739
740 <varlistentry id="showq">
741 <term><command>showq</command></term>
742 <listitem>
743 <para>A daemon that reports the Postfix mail queue status.</para>
744 <indexterm zone="postfix showq">
745 <primary sortas="b-showq">showq</primary>
746 </indexterm>
747 </listitem>
748 </varlistentry>
749
750 <varlistentry id="smtp">
751 <term><command>smtp</command></term>
752 <listitem>
753 <para>Looks up a list of mail exchanger addresses for the
754 destination host, sorts the list by preference, and connects to
755 each listed address until it finds a server that responds.</para>
756 <indexterm zone="postfix smtp">
757 <primary sortas="b-smtp">smtp</primary>
758 </indexterm>
759 </listitem>
760 </varlistentry>
761
762 <varlistentry id="smtpd">
763 <term><command>smtpd</command></term>
764 <listitem>
765 <para>Accepts network connection requests and performs zero
766 or more SMTP transactions per connection.</para>
767 <indexterm zone="postfix smtpd">
768 <primary sortas="b-smtpd">smtpd</primary>
769 </indexterm>
770 </listitem>
771 </varlistentry>
772
773 <varlistentry id="spawn">
774 <term><command>spawn</command></term>
775 <listitem>
776 <para>Listens on a port as specified in the
777 <application>Postfix</application> <filename>master.cf</filename> file
778 and spawns an external command whenever a connection is
779 established.</para>
780 <indexterm zone="postfix spawn">
781 <primary sortas="b-spawn">spawn</primary>
782 </indexterm>
783 </listitem>
784 </varlistentry>
785
786 <varlistentry id="tlsmgr">
787 <term><command>tlsmgr</command></term>
788 <listitem>
789 <para>Maintains the TLS session cache and acts as the PRNG
790 manager.</para>
791 <indexterm zone="postfix tlsmgr">
792 <primary sortas="b-tlsmgr">tlsmgr</primary>
793 </indexterm>
794 </listitem>
795 </varlistentry>
796
797 <varlistentry id="trivial-rewrite">
798 <term><command>trivial-rewrite</command></term>
799 <listitem>
800 <para>A daemon that rewrites addresses to standard form.</para>
801 <indexterm zone="postfix trivial-rewrite">
802 <primary sortas="b-trivial-rewrite">trivial-rewrite</primary>
803 </indexterm>
804 </listitem>
805 </varlistentry>
806
807 <varlistentry id="verify">
808 <term><command>verify</command></term>
809 <listitem>
810 <para>Maintains a record of what recipient addresses are known
811 to be deliverable or undeliverable.</para>
812 <indexterm zone="postfix verify">
813 <primary sortas="b-verify">verify</primary>
814 </indexterm>
815 </listitem>
816 </varlistentry>
817
818 <varlistentry id="virtual">
819 <term><command>virtual</command></term>
820 <listitem>
821 <para>Delivers mail to virtual user's mail directories.</para>
822 <indexterm zone="postfix virtual">
823 <primary sortas="b-virtual">virtual</primary>
824 </indexterm>
825 </listitem>
826 </varlistentry>
827
828 </variablelist>
829
830 </sect2>
831
832</sect1>
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