1 /*++
2 /* NAME
3 /* virtual 8
4 /* SUMMARY
5 /* Postfix virtual domain mail delivery agent
6 /* SYNOPSIS
7 /* \fBvirtual\fR [generic Postfix daemon options]
8 /* DESCRIPTION
9 /* The \fBvirtual\fR(8) delivery agent is designed for virtual mail
10 /* hosting services. Originally based on the Postfix \fBlocal\fR(8)
11 /* delivery
12 /* agent, this agent looks up recipients with map lookups of their
13 /* full recipient address, instead of using hard-coded unix password
14 /* file lookups of the address local part only.
15 /*
16 /* This delivery agent only delivers mail. Other features such as
17 /* mail forwarding, out-of-office notifications, etc., must be
18 /* configured via virtual_alias maps or via similar lookup mechanisms.
19 /* MAILBOX LOCATION
20 /* .ad
21 /* .fi
22 /* The mailbox location is controlled by the \fBvirtual_mailbox_base\fR
23 /* and \fBvirtual_mailbox_maps\fR configuration parameters (see below).
24 /* The \fBvirtual_mailbox_maps\fR table is indexed by the recipient
25 /* address as described under TABLE SEARCH ORDER below.
26 /*
27 /* The mailbox pathname is constructed as follows:
28 /*
29 /* .nf
30 /* \fB$virtual_mailbox_base/$virtual_mailbox_maps(\fIrecipient\fB)\fR
31 /* .fi
32 /*
33 /* where \fIrecipient\fR is the full recipient address.
34 /* UNIX MAILBOX FORMAT
35 /* .ad
36 /* .fi
37 /* When the mailbox location does not end in \fB/\fR, the message
38 /* is delivered in UNIX mailbox format. This format stores multiple
39 /* messages in one textfile.
40 /*
41 /* The \fBvirtual\fR(8) delivery agent prepends a "\fBFrom \fIsender
42 /* time_stamp\fR" envelope header to each message, prepends a
43 /* \fBDelivered-To:\fR message header with the envelope recipient
44 /* address,
45 /* prepends an \fBX-Original-To:\fR header with the recipient address as
46 /* given to Postfix,
47 /* prepends a \fBReturn-Path:\fR message header with the
48 /* envelope sender address, prepends a \fB>\fR character to lines
49 /* beginning with "\fBFrom \fR", and appends an empty line.
50 /*
51 /* The mailbox is locked for exclusive access while delivery is in
52 /* progress. In case of problems, an attempt is made to truncate the
53 /* mailbox to its original length.
54 /* QMAIL MAILDIR FORMAT
55 /* .ad
56 /* .fi
57 /* When the mailbox location ends in \fB/\fR, the message is delivered
58 /* in qmail \fBmaildir\fR format. This format stores one message per file.
59 /*
60 /* The \fBvirtual\fR(8) delivery agent prepends a \fBDelivered-To:\fR
61 /* message header with the final envelope recipient address,
62 /* prepends an \fBX-Original-To:\fR header with the recipient address as
63 /* given to Postfix, and prepends a
64 /* \fBReturn-Path:\fR message header with the envelope sender address.
65 /*
66 /* By definition, \fBmaildir\fR format does not require application-level
67 /* file locking during mail delivery or retrieval.
68 /* MAILBOX OWNERSHIP
69 /* .ad
70 /* .fi
71 /* Mailbox ownership is controlled by the \fBvirtual_uid_maps\fR
72 /* and \fBvirtual_gid_maps\fR lookup tables, which are indexed
73 /* with the full recipient address. Each table provides
74 /* a string with the numerical user and group ID, respectively.
75 /*
76 /* The \fBvirtual_minimum_uid\fR parameter imposes a lower bound on
77 /* numerical user ID values that may be specified in any
78 /* \fBvirtual_uid_maps\fR.
79 /* CASE FOLDING
80 /* .ad
81 /* .fi
82 /* All delivery decisions are made using the full recipient
83 /* address, folded to lower case. See also the next section
84 /* for a few exceptions with optional address extensions.
85 /* TABLE SEARCH ORDER
86 /* .ad
87 /* .fi
88 /* Normally, a lookup table is specified as a text file that
89 /* serves as input to the \fBpostmap\fR(1) command. The result, an
90 /* indexed file in \fBdbm\fR or \fBdb\fR format, is used for fast
91 /* searching by the mail system.
92 /*
93 /* The search order is as follows. The search stops
94 /* upon the first successful lookup.
95 /* .IP \(bu
96 /* When the recipient has an optional address extension the
97 /* \fIuser+extension@domain.tld\fR address is looked up first.
98 /* .sp
99 /* With Postfix versions before 2.1, the optional address extension
100 /* is always ignored.
101 /* .IP \(bu
102 /* The \fIuser@domain.tld\fR address, without address extension,
103 /* is looked up next.
104 /* .IP \(bu
105 /* Finally, the recipient \fI@domain\fR is looked up.
106 /* .PP
107 /* When the table is provided via other means such as NIS, LDAP
108 /* or SQL, the same lookups are done as for ordinary indexed files.
109 /*
110 /* Alternatively, a table can be provided as a regular-expression
111 /* map where patterns are given as regular expressions. In that case,
112 /* only the full recipient address is given to the regular-expression
113 /* map.
114 /* SECURITY
115 /* .ad
116 /* .fi
117 /* The \fBvirtual\fR(8) delivery agent is not security sensitive, provided
118 /* that the lookup tables with recipient user/group ID information are
119 /* adequately protected. This program is not designed to run chrooted.
120 /*
121 /* The \fBvirtual\fR(8) delivery agent disallows regular expression
122 /* substitution of $1 etc. in regular expression lookup tables,
123 /* because that would open a security hole.
124 /*
125 /* The \fBvirtual\fR(8) delivery agent will silently ignore requests
126 /* to use the \fBproxymap\fR(8) server. Instead it will open the
127 /* table directly. Before Postfix version 2.2, the virtual
128 /* delivery agent will terminate with a fatal error.
129 /* STANDARDS
130 /* RFC 822 (ARPA Internet Text Messages)
131 /* DIAGNOSTICS
132 /* Mail bounces when the recipient has no mailbox or when the
133 /* recipient is over disk quota. In all other cases, mail for
134 /* an existing recipient is deferred and a warning is logged.
135 /*
136 /* Problems and transactions are logged to \fBsyslogd\fR(8)
137 /* or \fBpostlogd\fR(8).
138 /* Corrupted message files are marked so that the queue
139 /* manager can move them to the \fBcorrupt\fR queue afterwards.
140 /*
141 /* Depending on the setting of the \fBnotify_classes\fR parameter,
142 /* the postmaster is notified of bounces and of other trouble.
143 /* BUGS
144 /* This delivery agent supports address extensions in email
145 /* addresses and in lookup table keys, but does not propagate
146 /* address extension information to the result of table lookup.
147 /*
148 /* Postfix should have lookup tables that can return multiple result
149 /* attributes. In order to avoid the inconvenience of maintaining
150 /* three tables, use an LDAP or MYSQL database.
151 /* CONFIGURATION PARAMETERS
152 /* .ad
153 /* .fi
154 /* Changes to \fBmain.cf\fR are picked up automatically, as
155 /* \fBvirtual\fR(8)
156 /* processes run for only a limited amount of time. Use the command
157 /* "\fBpostfix reload\fR" to speed up a change.
158 /*
159 /* The text below provides only a parameter summary. See
160 /* \fBpostconf\fR(5) for more details including examples.
161 /* MAILBOX DELIVERY CONTROLS
162 /* .ad
163 /* .fi
164 /* .IP "\fBvirtual_mailbox_base (empty)\fR"
165 /* A prefix that the \fBvirtual\fR(8) delivery agent prepends to all pathname
166 /* results from $virtual_mailbox_maps table lookups.
167 /* .IP "\fBvirtual_mailbox_maps (empty)\fR"
168 /* Optional lookup tables with all valid addresses in the domains that
169 /* match $virtual_mailbox_domains.
170 /* .IP "\fBvirtual_minimum_uid (100)\fR"
171 /* The minimum user ID value that the \fBvirtual\fR(8) delivery agent accepts
172 /* as a result from $virtual_uid_maps table lookup.
173 /* .IP "\fBvirtual_uid_maps (empty)\fR"
174 /* Lookup tables with the per-recipient user ID that the \fBvirtual\fR(8)
175 /* delivery agent uses while writing to the recipient's mailbox.
176 /* .IP "\fBvirtual_gid_maps (empty)\fR"
177 /* Lookup tables with the per-recipient group ID for \fBvirtual\fR(8) mailbox
178 /* delivery.
179 /* .PP
180 /* Available in Postfix version 2.0 and later:
181 /* .IP "\fBvirtual_mailbox_domains ($virtual_mailbox_maps)\fR"
182 /* Postfix is final destination for the specified list of domains;
183 /* mail is delivered via the $virtual_transport mail delivery transport.
184 /* .IP "\fBvirtual_transport (virtual)\fR"
185 /* The default mail delivery transport and next-hop destination for
186 /* final delivery to domains listed with $virtual_mailbox_domains.
187 /* .PP
188 /* Available in Postfix version 2.5.3 and later:
189 /* .IP "\fBstrict_mailbox_ownership (yes)\fR"
190 /* Defer delivery when a mailbox file is not owned by its recipient.
191 /* LOCKING CONTROLS
192 /* .ad
193 /* .fi
194 /* .IP "\fBvirtual_mailbox_lock (see 'postconf -d' output)\fR"
195 /* How to lock a UNIX-style \fBvirtual\fR(8) mailbox before attempting
196 /* delivery.
197 /* .IP "\fBdeliver_lock_attempts (20)\fR"
198 /* The maximal number of attempts to acquire an exclusive lock on a
199 /* mailbox file or \fBbounce\fR(8) logfile.
200 /* .IP "\fBdeliver_lock_delay (1s)\fR"
201 /* The time between attempts to acquire an exclusive lock on a mailbox
202 /* file or \fBbounce\fR(8) logfile.
203 /* .IP "\fBstale_lock_time (500s)\fR"
204 /* The time after which a stale exclusive mailbox lockfile is removed.
205 /* RESOURCE AND RATE CONTROLS
206 /* .ad
207 /* .fi
208 /* .IP "\fBvirtual_mailbox_limit (51200000)\fR"
209 /* The maximal size in bytes of an individual \fBvirtual\fR(8) mailbox or
210 /* maildir file, or zero (no limit).
211 /* .PP
212 /* Implemented in the qmgr(8) daemon:
213 /* .IP "\fBvirtual_destination_concurrency_limit ($default_destination_concurrency_limit)\fR"
214 /* The maximal number of parallel deliveries to the same destination
215 /* via the virtual message delivery transport.
216 /* .IP "\fBvirtual_destination_recipient_limit ($default_destination_recipient_limit)\fR"
217 /* The maximal number of recipients per message for the virtual
218 /* message delivery transport.
219 /* MISCELLANEOUS CONTROLS
220 /* .ad
221 /* .fi
222 /* .IP "\fBconfig_directory (see 'postconf -d' output)\fR"
223 /* The default location of the Postfix main.cf and master.cf
224 /* configuration files.
225 /* .IP "\fBdaemon_timeout (18000s)\fR"
226 /* How much time a Postfix daemon process may take to handle a
227 /* request before it is terminated by a built-in watchdog timer.
228 /* .IP "\fBdelay_logging_resolution_limit (2)\fR"
229 /* The maximal number of digits after the decimal point when logging
230 /* sub-second delay values.
231 /* .IP "\fBipc_timeout (3600s)\fR"
232 /* The time limit for sending or receiving information over an internal
233 /* communication channel.
234 /* .IP "\fBmax_idle (100s)\fR"
235 /* The maximum amount of time that an idle Postfix daemon process waits
236 /* for an incoming connection before terminating voluntarily.
237 /* .IP "\fBmax_use (100)\fR"
238 /* The maximal number of incoming connections that a Postfix daemon
239 /* process will service before terminating voluntarily.
240 /* .IP "\fBprocess_id (read-only)\fR"
241 /* The process ID of a Postfix command or daemon process.
242 /* .IP "\fBprocess_name (read-only)\fR"
243 /* The process name of a Postfix command or daemon process.
244 /* .IP "\fBqueue_directory (see 'postconf -d' output)\fR"
245 /* The location of the Postfix top-level queue directory.
246 /* .IP "\fBsyslog_facility (mail)\fR"
247 /* The syslog facility of Postfix logging.
248 /* .IP "\fBsyslog_name (see 'postconf -d' output)\fR"
249 /* A prefix that is prepended to the process name in syslog
250 /* records, so that, for example, "smtpd" becomes "prefix/smtpd".
251 /* .PP
252 /* Available in Postfix version 3.0 and later:
253 /* .IP "\fBvirtual_delivery_status_filter ($default_delivery_status_filter)\fR"
254 /* Optional filter for the \fBvirtual\fR(8) delivery agent to change the
255 /* delivery status code or explanatory text of successful or unsuccessful
256 /* deliveries.
257 /* .PP
258 /* Available in Postfix version 3.3 and later:
259 /* .IP "\fBenable_original_recipient (yes)\fR"
260 /* Enable support for the original recipient address after an
261 /* address is rewritten to a different address (for example with
262 /* aliasing or with canonical mapping).
263 /* .IP "\fBservice_name (read-only)\fR"
264 /* The master.cf service name of a Postfix daemon process.
265 /* .PP
266 /* Available in Postfix 3.5 and later:
267 /* .IP "\fBinfo_log_address_format (external)\fR"
268 /* The email address form that will be used in non-debug logging
269 /* (info, warning, etc.).
270 /* SEE ALSO
271 /* qmgr(8), queue manager
272 /* bounce(8), delivery status reports
273 /* postconf(5), configuration parameters
274 /* postlogd(8), Postfix logging
275 /* syslogd(8), system logging
276 /* README_FILES
277 /* Use "\fBpostconf readme_directory\fR" or
278 /* "\fBpostconf html_directory\fR" to locate this information.
279 /* VIRTUAL_README, domain hosting howto
280 /* LICENSE
281 /* .ad
282 /* .fi
283 /* The Secure Mailer license must be distributed with this software.
284 /* HISTORY
285 /* .ad
286 /* .fi
287 /* This delivery agent was originally based on the Postfix local delivery
288 /* agent. Modifications mainly consisted of removing code that either
289 /* was not applicable or that was not safe in this context: aliases,
290 /* ~user/.forward files, delivery to "|command" or to /file/name.
291 /*
292 /* The \fBDelivered-To:\fR message header appears in the \fBqmail\fR
293 /* system by Daniel Bernstein.
294 /*
295 /* The \fBmaildir\fR structure appears in the \fBqmail\fR system
296 /* by Daniel Bernstein.
297 /* AUTHOR(S)
298 /* Wietse Venema
299 /* IBM T.J. Watson Research
300 /* P.O. Box 704
301 /* Yorktown Heights, NY 10598, USA
302 /*
303 /* Wietse Venema
304 /* Google, Inc.
305 /* 111 8th Avenue
306 /* New York, NY 10011, USA
307 /*
308 /* Andrew McNamara
309 /* andrewm@connect.com.au
310 /* connect.com.au Pty. Ltd.
311 /* Level 3, 213 Miller St
312 /* North Sydney 2060, NSW, Australia
313 /*--*/
314
315 /* System library. */
316
317 #include <sys_defs.h>
318 #include <stdlib.h>
319 #ifdef USE_PATHS_H
320 #include <paths.h> /* XXX mail_spool_dir dependency */
321 #endif
322
323 /* Utility library. */
324
325 #include <msg.h>
326 #include <vstring.h>
327 #include <vstream.h>
328 #include <iostuff.h>
329 #include <set_eugid.h>
330 #include <dict.h>
331
332 /* Global library. */
333
334 #include <mail_queue.h>
335 #include <recipient_list.h>
336 #include <deliver_request.h>
337 #include <deliver_completed.h>
338 #include <mail_params.h>
339 #include <mail_version.h>
340 #include <mail_conf.h>
341 #include <mail_params.h>
342 #include <mail_addr_find.h>
343 #include <flush_clnt.h>
344
345 /* Single server skeleton. */
346
347 #include <mail_server.h>
348
349 /* Application-specific. */
350
351 #include "virtual.h"
352
353 /*
354 * Tunable parameters.
355 */
356 char *var_virt_mailbox_maps;
357 char *var_virt_uid_maps;
358 char *var_virt_gid_maps;
359 int var_virt_minimum_uid;
360 char *var_virt_mailbox_base;
361 char *var_virt_mailbox_lock;
362 long var_virt_mailbox_limit;
363 char *var_mail_spool_dir; /* XXX dependency fix */
364 bool var_strict_mbox_owner;
365 char *var_virt_dsn_filter;
366
367 /*
368 * Mappings.
369 */
370 MAPS *virtual_mailbox_maps;
371 MAPS *virtual_uid_maps;
372 MAPS *virtual_gid_maps;
373
374 /*
375 * Bit masks.
376 */
377 int virtual_mbox_lock_mask;
378
379 /* local_deliver - deliver message with extreme prejudice */
380
local_deliver(DELIVER_REQUEST * rqst,char * service)381 static int local_deliver(DELIVER_REQUEST *rqst, char *service)
382 {
383 const char *myname = "local_deliver";
384 RECIPIENT *rcpt_end = rqst->rcpt_list.info + rqst->rcpt_list.len;
385 RECIPIENT *rcpt;
386 int rcpt_stat;
387 int msg_stat;
388 LOCAL_STATE state;
389 USER_ATTR usr_attr;
390
391 if (msg_verbose)
392 msg_info("local_deliver: %s from %s", rqst->queue_id, rqst->sender);
393
394 /*
395 * Initialize the delivery attributes that are not recipient specific.
396 */
397 state.level = 0;
398 deliver_attr_init(&state.msg_attr);
399 state.msg_attr.queue_name = rqst->queue_name;
400 state.msg_attr.queue_id = rqst->queue_id;
401 state.msg_attr.fp = rqst->fp;
402 state.msg_attr.offset = rqst->data_offset;
403 state.msg_attr.sender = rqst->sender;
404 state.msg_attr.dsn_envid = rqst->dsn_envid;
405 state.msg_attr.dsn_ret = rqst->dsn_ret;
406 state.msg_attr.relay = service;
407 state.msg_attr.msg_stats = rqst->msg_stats;
408 RESET_USER_ATTR(usr_attr, state.level);
409 state.request = rqst;
410
411 /*
412 * Iterate over each recipient named in the delivery request. When the
413 * mail delivery status for a given recipient is definite (i.e. bounced
414 * or delivered), update the message queue file and cross off the
415 * recipient. Update the per-message delivery status.
416 */
417 for (msg_stat = 0, rcpt = rqst->rcpt_list.info; rcpt < rcpt_end; rcpt++) {
418 state.msg_attr.rcpt = *rcpt;
419 rcpt_stat = deliver_recipient(state, usr_attr);
420 if (rcpt_stat == 0 && (rqst->flags & DEL_REQ_FLAG_SUCCESS))
421 deliver_completed(state.msg_attr.fp, rcpt->offset);
422 msg_stat |= rcpt_stat;
423 }
424
425 deliver_attr_free(&state.msg_attr);
426 return (msg_stat);
427 }
428
429 /* local_service - perform service for client */
430
local_service(VSTREAM * stream,char * service,char ** argv)431 static void local_service(VSTREAM *stream, char *service, char **argv)
432 {
433 DELIVER_REQUEST *request;
434 int status;
435
436 /*
437 * Sanity check. This service takes no command-line arguments.
438 */
439 if (argv[0])
440 msg_fatal("unexpected command-line argument: %s", argv[0]);
441
442 /*
443 * This routine runs whenever a client connects to the UNIX-domain socket
444 * that is dedicated to local mail delivery service. What we see below is
445 * a little protocol to (1) tell the client that we are ready, (2) read a
446 * delivery request from the client, and (3) report the completion status
447 * of that request.
448 */
449 if ((request = deliver_request_read(stream)) != 0) {
450 status = local_deliver(request, service);
451 deliver_request_done(stream, request, status);
452 }
453 }
454
455 /* pre_accept - see if tables have changed */
456
pre_accept(char * unused_name,char ** unused_argv)457 static void pre_accept(char *unused_name, char **unused_argv)
458 {
459 const char *table;
460
461 if ((table = dict_changed_name()) != 0) {
462 msg_info("table %s has changed -- restarting", table);
463 exit(0);
464 }
465 }
466
467 /* post_init - post-jail initialization */
468
post_init(char * unused_name,char ** unused_argv)469 static void post_init(char *unused_name, char **unused_argv)
470 {
471
472 /*
473 * Drop privileges most of the time.
474 */
475 set_eugid(var_owner_uid, var_owner_gid);
476
477 /*
478 * No case folding needed: the recipient address is case folded.
479 */
480 virtual_mailbox_maps =
481 maps_create(VAR_VIRT_MAILBOX_MAPS, var_virt_mailbox_maps,
482 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
483 | DICT_FLAG_UTF8_REQUEST);
484
485 virtual_uid_maps =
486 maps_create(VAR_VIRT_UID_MAPS, var_virt_uid_maps,
487 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
488 | DICT_FLAG_UTF8_REQUEST);
489
490 virtual_gid_maps =
491 maps_create(VAR_VIRT_GID_MAPS, var_virt_gid_maps,
492 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
493 | DICT_FLAG_UTF8_REQUEST);
494
495 virtual_mbox_lock_mask = mbox_lock_mask(var_virt_mailbox_lock);
496 }
497
498 /* pre_init - pre-jail initialization */
499
pre_init(char * unused_name,char ** unused_argv)500 static void pre_init(char *unused_name, char **unused_argv)
501 {
502
503 /*
504 * Reset the file size limit from the message size limit to the mailbox
505 * size limit.
506 *
507 * We can't have mailbox size limit smaller than the message size limit,
508 * because that prohibits the delivery agent from updating the queue
509 * file.
510 */
511 if (ENFORCING_SIZE_LIMIT(var_virt_mailbox_limit)) {
512 if (!ENFORCING_SIZE_LIMIT(var_message_limit))
513 msg_fatal("configuration error: %s is limited but %s is "
514 "unlimited", VAR_VIRT_MAILBOX_LIMIT, VAR_MESSAGE_LIMIT);
515 if (var_virt_mailbox_limit < var_message_limit)
516 msg_fatal("configuration error: %s is smaller than %s",
517 VAR_VIRT_MAILBOX_LIMIT, VAR_MESSAGE_LIMIT);
518 set_file_limit(var_virt_mailbox_limit);
519 }
520
521 /*
522 * flush client.
523 */
524 flush_init();
525 }
526
527 MAIL_VERSION_STAMP_DECLARE;
528
529 /* main - pass control to the single-threaded skeleton */
530
main(int argc,char ** argv)531 int main(int argc, char **argv)
532 {
533 static const CONFIG_INT_TABLE int_table[] = {
534 VAR_VIRT_MINUID, DEF_VIRT_MINUID, &var_virt_minimum_uid, 1, 0,
535 0,
536 };
537 static const CONFIG_LONG_TABLE long_table[] = {
538 VAR_VIRT_MAILBOX_LIMIT, DEF_VIRT_MAILBOX_LIMIT, &var_virt_mailbox_limit, 0, 0,
539 0,
540 };
541 static const CONFIG_STR_TABLE str_table[] = {
542 VAR_MAIL_SPOOL_DIR, DEF_MAIL_SPOOL_DIR, &var_mail_spool_dir, 0, 0,
543 VAR_VIRT_MAILBOX_MAPS, DEF_VIRT_MAILBOX_MAPS, &var_virt_mailbox_maps, 0, 0,
544 VAR_VIRT_UID_MAPS, DEF_VIRT_UID_MAPS, &var_virt_uid_maps, 0, 0,
545 VAR_VIRT_GID_MAPS, DEF_VIRT_GID_MAPS, &var_virt_gid_maps, 0, 0,
546 VAR_VIRT_MAILBOX_BASE, DEF_VIRT_MAILBOX_BASE, &var_virt_mailbox_base, 1, 0,
547 VAR_VIRT_MAILBOX_LOCK, DEF_VIRT_MAILBOX_LOCK, &var_virt_mailbox_lock, 1, 0,
548 VAR_VIRT_DSN_FILTER, DEF_VIRT_DSN_FILTER, &var_virt_dsn_filter, 0, 0,
549 0,
550 };
551 static const CONFIG_BOOL_TABLE bool_table[] = {
552 VAR_STRICT_MBOX_OWNER, DEF_STRICT_MBOX_OWNER, &var_strict_mbox_owner,
553 0,
554 };
555
556 /*
557 * Fingerprint executables and core dumps.
558 */
559 MAIL_VERSION_STAMP_ALLOCATE;
560
561 single_server_main(argc, argv, local_service,
562 CA_MAIL_SERVER_INT_TABLE(int_table),
563 CA_MAIL_SERVER_LONG_TABLE(long_table),
564 CA_MAIL_SERVER_STR_TABLE(str_table),
565 CA_MAIL_SERVER_BOOL_TABLE(bool_table),
566 CA_MAIL_SERVER_PRE_INIT(pre_init),
567 CA_MAIL_SERVER_POST_INIT(post_init),
568 CA_MAIL_SERVER_PRE_ACCEPT(pre_accept),
569 CA_MAIL_SERVER_PRIVILEGED,
570 CA_MAIL_SERVER_BOUNCE_INIT(VAR_VIRT_DSN_FILTER,
571 &var_virt_dsn_filter),
572 0);
573 }
574