4 This file contains complete lists of four kinds of Exim option:
6 1. Those that can appear in the run time configuration file;
7 2. Those that can be used on the command line;
8 3. Those that can appear in the build time configuration (Local/Makefile);
9 4. Those that can appear in the build time configuration for the Exim monitor
12 This file was last updated for Exim release 4.72.
18 As Exim has developed, new options have been added at each major release. For
19 the most part, backwards compatibility has been maintained, and obsolete
20 options continue to be recognized. However, incompatible changes took place at
21 releases 3.00, and 4.00. In both cases, several groups of options were
22 amalgamated into new, extended options, and obsolete options were removed.
24 The table below contains a complete list of all Exim's current options, along
25 with their types, default values, and where they can be used. String options
26 that are expanded before use are marked with *. Host lists, domain lists, and
27 address lists are always expanded. In some cases the defaults are not fixed
28 values, or not short enough to fit in the table. These are indicated by +. Some
29 other default values are determined when the Exim binary is compiled; these are
32 For options that are specific to a particular driver, the fourth column
33 contains the driver name, for example, appendfile. Otherwise, it contains
35 . `main' for options that appear in the main section of Exim's configuration
38 . `authenticators' for generic options that apply to any authenticator;
40 . `routers' for generic options that apply to any router;
42 . `transports' for generic options that apply to any transport.
44 The fifth column contains the version of Exim in which the option was added, or
45 substantially changed. Where no number is given, the option has been in Exim
46 since the very early releases. The routers were completely reorganised for
47 release 4.00, and so no router options are shown as earlier than 4.00, though
48 in fact some of them were inherited from earlier versions.
50 -----------------------------------------------------------------------------------------
51 accept_8bitmime boolean true main 1.60 changed to true in 4.80
52 acl_not_smtp string* unset main 4.11
53 acl_not_smtp_mime string* unset main 4.51 with content scan
54 acl_smtp_auth string* unset main 4.00
55 acl_smtp_connect string* unset main 4.11
56 acl_smtp_data string* unset main 4.00
57 acl_smtp_data_prdr string* unset main 4.82 with experimental_prdr, 4.83 unless disable_prdr
58 acl_smtp_dkim string* unset main 4.70 unless disable_dkim
59 acl_smtp_etrn string* unset main 4.00
60 acl_smtp_expn string* unset main 4.00
61 acl_smtp_helo string* unset main 4.20
62 acl_smtp_mail string* unset main 4.11
63 acl_smtp_mailauth string* unset main 4.21
64 acl_smtp_mime string* unset main 4.50 with content scan
65 acl_smtp_predata string* unset main 4.43
66 acl_smtp_quit string* unset main 4.43
67 acl_smtp_rcpt string* unset main 4.00
68 acl_smtp_starttls string* unset main 4.11
69 acl_smtp_vrfy string* unset main 4.00
70 address_data string* unset routers 4.00
71 address_retry_include_sender boolean true smtp 4.64
72 address_test boolean true routers 4.14
73 admin_groups string list unset main 3.02
74 allow_domain_literals boolean false main 4.00 replacing forbid_domain_literals
75 allow_commands string list* unset pipe 1.89
76 allow_defer boolean false redirect 4.00
77 allow_fail boolean false redirect 4.00
78 allow_filter boolean false redirect 4.00
79 allow_freeze boolean false redirect 4.00
80 allow_fifo boolean false appendfile 3.13
81 allow_localhost boolean false smtp 1.73
82 allow_mx_to_ip boolean false main 3.14
83 allow_symlink boolean false appendfile
84 allow_utf8_domains boolean false main 4.14
85 arc_sign string* unset smtp 4.91 with Experimental_ARC
86 auth_advertise_hosts host list "*" main 4.00
87 authenticated_sender string* unset smtp 4.14
88 authenticated_sender_force boolean false smtp 4.61
89 authenticate_hosts host list unset smtp 3.13
90 auto_thaw time 0s main
91 av_scanner string* + main 4.50 with content scan
92 batch_id string unset appendfile 4.00
95 batch_max integer 100 appendfile
98 bcc string* unset autoreply
99 bi_command string unset main
100 body_only boolean false transports 2.05
101 bounce_message_file string unset main 4.00
102 bounce_message_text string unset main 4.00
103 bounce_return_body boolean true main 4.23
104 bounce_return_message boolean true main 4.00
105 bounce_return_size_limit int 100K main 4.23 better name for return_size_limit
106 bounce_sender_authentication string unset main 4.00
107 callout_domain_negative_expire time 3h main 4.11
108 callout_domain_positive_expire time 7d main 4.11
109 callout_negative_expire time 2h main 4.11
110 callout_positive_expire time 24h main 4.11
111 callout_random_local_part string* + main 4.11
112 cannot_route_message string* unset routers 4.11
113 caseful_local_part boolean false routers 4.00
114 cc string* unset autoreply
115 check_ancestor boolean false redirect 4.00
116 check_group boolean false appendfile
118 check_local_user boolean false routers 4.00
119 check_log_inodes integer 0 main
120 check_log_space integer 0 main
121 check_owner boolean true appendfile 3.14
123 check_rfc2047_length boolean true main 4.60
124 check_secondary_mx boolean false dnslookup 4.00
125 check_spool_inodes integer 0 main
126 check_spool_space integer 0 main
127 check_string string "From " appendfile 3.03
129 check_srv string* unset dnslookup 4.31
130 client_authz string* unset gsasl 4.94
131 client_condition string* unset authenticators 4.68
132 client_ignore_invalid_base64 boolean false plaintext 4.61
133 client_name string* + cram_md5 3.10
134 client_password string* unset gsasl 4.94
135 client_secret string* unset cram_md5 3.10
136 client_send string* unset plaintext 3.10
137 unset external (auth) 4.93
138 client_username string* unset gsasl 4.94
139 command string* unset lmtp 3.20
141 unset queryprogram 4.00
142 command_group string unset queryprogram 4.00
143 command_timeout time 5m smtp
144 command_user string unset queryprogram 4.00
145 commandline_checks_require_admin boolean false main 4.90
146 condition string* unset routers 4.00
147 connect_timeout time 0s smtp 1.60
148 connection_max_messages integer 500 smtp 4.00 replaces batch_max
149 create_directory boolean true appendfile
150 create_file string "anywhere" appendfile
151 current_directory string unset transports 4.00
152 unset queryprogram 4.00
153 daemon_smtp_ports string unset main 1.75 pluralised in 4.21
154 daemon_startup_retries int 9 main 4.52
155 daemon_startup_sleep time 30s main 4.52
156 dane_require_tls_ciphers string* unset smtp 4.91
157 data string unset redirect 4.00
158 data_timeout time 5m smtp
159 debug_print string* unset authenticators 4.00
161 unset transports 2.00
162 debug_store boolean false main 4.90
163 delay_after_cutoff boolean true smtp
164 delay_warning time list 24h main
165 delay_warning_condition string* + main 1.73
166 deliver_drop_privilege boolean false main 4.00
167 deliver_queue_load_max fixed-point unset main 1.70
168 delivery_date_add boolean false transports
169 delivery_date_remove boolean true main
170 dkim_canon string* unset smtp 4.70
171 dkim_domain string list* unset smtp 4.72
172 dkim_private_key string* unset smtp 4.70
173 dkim_selector string* unset smtp 4.70
174 dkim_sign_headers string* (RFC4871) smtp 4.70
175 dkim_strict string* unset smtp 4.70
176 dkim_timestamps integer* unset smtp 4.92
177 dkim_verify_hashes string sha256:sha512:sha1 main 4.93
178 dkim_verify_keytypes string ed25519:rsa main 4.93
179 dkim_verify_minimal boolean false main 4.93
180 dkim_verify_signers string* $dkim_signers main 4.70
181 directory string* unset appendfile
182 directory_file string* + appendfile
183 directory_mode octal-integer 0700 appendfile
184 directory_transport string* unset redirect 4.00
185 disable_ipv6 boolean false main 4.61
186 disable_logging boolean false routers 4.11
187 false transports 4.11
188 dmarc_forensic_sender string unset main 4.82 if experimental_dmarc, 4.93 mainline
189 dmarc_history_file string unset main 4.82 if experimental_dmarc, 4.93 mainline
190 dmarc_tld_file string unset main 4.82 if experimental_dmarc, 4.93 mainline
191 dns_again_means_nonexist domain list unset main 1.89
192 dns_check_names_pattern string + main 2.11
193 dns_cname_loops integer 0 main 4.92 Set to 9 for older behaviour
194 dns_csa_search_limit integer 5 main 4.60
195 dns_csa_use_reverse boolean true main 4.60
196 dns_dnssec_ok integer -1 main 4.82
197 dns_dane_ok integer -1 main 4.83
198 dns_ipv4_lookup boolean false main 3.20
199 dns_qualify_single boolean true smtp
200 dns_retrans time 0s main 1.60
201 dns_retry integer 0 main 1.60
202 dns_search_parents boolean false smtp
203 dns_use_edns0 integer -1 main 4.76
204 domains domain list unset routers 4.00
205 driver string unset authenticators
208 drop_cr boolean false main 4.00 became a no-op in 4.21
209 dscp string unset smtp 4.82
210 dsn_from string* + main 4.67
211 envelope_to_add boolean false transports
212 envelope_to_remove boolean true main
213 environment string* unset pipe 2.95
214 errors_copy string list* unset main
215 errors_reply_to string unset main
216 errors_to string* unset routers 4.00
217 escape_string string ">From " appendfile 3.03
219 exim_group string ++ main
220 exim_path string ++ main
221 exim_user string ++ main
222 exim_version string ++ main 4.93
223 expn boolean true routers
224 extra_local_interfaces string unset main 4.21
225 extract_addresses_remove_arguments boolean true main 1.92
226 fail_verify boolean false routers
227 fail_verify_recipient boolean false routers 4.00
228 fail_verify_sender boolean false routers 4.00
229 fallback_hosts string list unset routers 4.00
231 file string* unset appendfile
234 file_expand boolean false autoreply
235 file_format string unset appendfile 3.03
236 file_must_exist boolean false appendfile
237 file_optional boolean false autoreply
238 file_transport string* unset redirect 4.00
239 filter_prepend_home boolean true redirect 4.63
240 final_timeout time 10m smtp
241 finduser_retries integer 0 main
242 forbid_blackhole boolean false redirect 4.00
243 forbid_exim_filter boolean false redirect 4.44
244 forbid_fail boolean false redirect 4.00
245 forbid_file boolean false redirect 4.00
246 forbid_filter_existstest boolean false redirect 4.00
247 forbid_filter_logwrite boolean false redirect 4.00
248 forbid_filter_lookup boolean false redirect 4.00
249 forbid_filter_perl boolean false redirect 4.00
250 forbid_filter_readfile boolean false redirect 4.00
251 forbid_filter_readsocket boolean false redirect 4.11
252 forbid_filter_reply boolean false redirect 4.00
253 forbid_filter_run boolean false redirect 4.00
254 forbid_include boolean false redirect 4.00
255 forbid_pipe boolean false redirect 4.00
256 forbid_sieve_filter boolean false redirect 4.44
257 forbid_smtp_code boolean false redirect 4.63
258 force_command boolean false pipe 4.82
259 freeze_exec_fail boolean false pipe 1.89
260 freeze_signal boolean false pipe 4.75
261 freeze_tell boolean false main 4.00 replaces freeze_tell_mailmaster
262 from string* unset autoreply
263 gecos_name string* unset main
264 gecos_pattern string unset main
265 gethostbyname boolean false smtp
266 gnutls_allow_auto_pkcs11 boolean false main 4.82
267 gnutls_compat_mode boolean unset main 4.70
268 gnutls_require_kx string* unset main 4.67 deprecated, warns
269 string* unset smtp 4.67 deprecated, warns
270 gnutls_require_mac string* unset main 4.67 deprecated, warns
271 string* unset smtp 4.67 deprecated, warns
272 gnutls_require_protocols string* unset main 4.67 deprecated, warns
273 string* unset smtp 4.67 deprecated, warns
274 group string + routers 4.00
275 unset transports 4.00 replaces local option in some transports
276 header_line_maxsize integer 0 (unset) main 4.14
277 header_maxsize integer 1M main 4.14
278 headers string* unset autoreply
279 headers_add string* unset routers 4.00
281 headers_charset string ++ main 4.21
282 headers_only boolean false transports 2.05
283 headers_remove string* unset routers 4.00
285 headers_rewrite string unset transports 3.20
286 helo_accept_junk_hosts host list unset main 3.00
287 helo_allow_chars string "" main 4.02
288 helo_lookup_domains domain list unset main 4.00
289 helo_data string* "$primary_hostname" smtp 3.21
290 helo_try_verify_hosts host list unset main 4.00
291 helo_verify_hosts host list unset main 1.73
292 hide_child_in_errmsg false redirect 4.00
293 hold_domains domain list unset main 1.70
294 home_directory string* unset transports 4.00 replaces individual options
295 host_all_ignored string "defer" manualroute 4.67
296 host_find_failed string "freeze" manualroute 4.00
297 host_lookup host list unset main 3.00
298 host_lookup_order string list "bydns:byaddr" main 4.30
299 host_reject_connection host list unset main 4.00
300 hosts string unset iplookup 4.00
301 string list* unset smtp
302 hosts_avoid_esmtp host list unset smtp 4.21
303 hosts_avoid_pipelining host list unset smtp 4.67
304 hosts_avoid_tls host list unset smtp 3.20
305 hosts_connection_nolog host list unset main 4.43
306 hosts_max_try integer 5 smtp 3.20
307 hosts_max_try_hardlimit integer 50 smtp 4.50
308 hosts_nopass_tls host list unset smtp 4.00
309 hosts_noproxy_tls host list "*" smtp 4.90
310 hosts_override boolean false smtp 2.11
311 hosts_pipe_connect host_list unset smtp 4.93 if experimental_pipe_connect
312 hosts_randomize boolean false manualroute 4.00
314 hosts_require_auth host list unset smtp 4.00
315 hosts_require_dane host list unset smtp 4.91 (4.85 experimental)
316 hosts_require_ocsp host list unset smtp 4.82 if experimental_ocsp
317 hosts_require_tls host list unset smtp 3.20
318 hosts_treat_as_local domain list unset main 1.95
319 hosts_try_auth host list unset smtp 4.00
320 hosts_try_dane host list unset smtp 4.91 (4.85 experimental)
321 hosts_try_fastopen host list unset smtp 4.88
322 hosts_try_prdr host list unset smtp 4.82 if experimental_prdr
323 ibase_servers string unset main 4.23
324 ignore_bounce_errors_after time 0s main 4.00
325 ignore_eacces boolean false redirect 4.00
326 ignore_enotdir boolean false redirect 4.00
327 ignore_fromline_hosts host list unset main
328 ignore_fromline_local boolean false main 2.05
329 ignore_status boolean false pipe
330 ignore_target_hosts host list unset routers 4.00
331 include_directory string unset redirect 4.00
332 initgroups false routers 4.00
333 interface string list unset smtp 1.70
334 keep_malformed time 4d main
335 keepalive boolean true smtp 2.05
336 ldap_default_servers string list unset main 3.02
337 ldap_version int 2 or 3 main 4.14
338 local_from_check boolean true main 3.14
339 local_from_prefix string unset main 3.14
340 local_from_suffix string unset main 3.14
341 local_interfaces string list unset main 1.60
342 local_part_prefix string unset routers 4.00 replaces prefix
343 local_part_prefix_optional boolean unset routers 4.00 replaces prefix_optional
344 local_part_suffix string unset routers 4.00 replaces suffix
345 local_part_suffix_optional boolean unset routers 4.00 replaces suffix_optional
346 local_parts string list* unset routers 4.00
347 local_scan_timeout time 5m main 4.03
348 local_sender_retain boolean false main 4.00
349 localhost_number string unset main
350 lock_fcntl_timeout time 0s appendfile 3.14
351 lock_flock_timeout time 0s appendfile 4.11
352 lock_interval time 3s appendfile
353 lock_retries integer 10 appendfile
354 lockfile_mode octal-integer 0600 appendfile
355 lockfile_timeout time 30m appendfile
356 log string* unset autoreply
357 log_as_local boolean + routers 4.00
358 log_file_path string list ++ main
359 log_defer_output boolean false pipe 1.89
360 log_fail_output boolean false pipe 1.60
361 log_output boolean false pipe 1.60
362 log_selector string unset main 4.00
363 log_timezone boolean false main 4.11
364 lookup_open_max integer 25 main 2.05
365 mailbox_filecount string* unset appendfile 4.43
366 mailbox_size string* unset appendfile 4.43
367 maildir_format boolean false appendfile 1.70
368 maildir_retries integer 10 appendfile 1.70
369 maildir_tag string* unset appendfile 1.92
370 maildir_use_size_file boolean* false appendfile 4.30 expanded in 4.77
371 maildirfolder_create_regex string unset appendfile 4.62
372 mailstore_format boolean false appendfile 2.00
373 mailstore_prefix string* unset appendfile 2.00
374 mailstore_suffix string* unset appendfile 2.00
375 match_directory string* unset localuser
376 max_output integer 20K pipe
377 max_rcpt integer 100 smtp 1.60
378 max_user_name_length integer 0 main
379 mbx_format boolean false appendfile 2.10
380 message_body_newlines boolean false main 4.68
381 message_body_visible integer 500 main
382 message_id_header_domain string* unset main 4.11
383 message_id_header_text string* unset main
384 message_logs boolean true main 4.10
385 message_prefix string* + appendfile 4.00 replaces prefix
386 string* unset pipe 4.00 replaces prefix
387 message_size_limit integer 50M main
389 message_suffix string* + appendfile 4.00 replaces suffix
390 string* unset pipe 4.00 replaces suffix
391 mode octal-integer 0600 appendfile
393 mode_fail_narrower boolean true appendfile 1.70
394 modemask octal-integer 022 redirect 4.00
395 more boolean true routers 4.00
396 move_frozen_messages boolean false main 3.09
397 multi_domain boolean true smtp
398 mx_domains domain list unset dnslookup 4.00
399 mx_fail_domains domain list unset dnslookup 4.43
400 mysql_servers string list unset main 3.03
401 never_users string list unset main
402 notifier_socket string "$spool_directory/exim_daemon_notify"
404 notify_comsat boolean false appendfile
405 once string* unset autoreply
406 once_file_size integer 0 autoreply 3.20
407 once_repeat time 0s autoreply 2.95
408 one_time boolean false redirect 4.00
409 openssl_options string +no_sslv2 main 4.73 default changed in 4.80
410 optional boolean false iplookup 4.00
411 oracle_servers string unset main 4.00
412 owners string list unset redirect 4.00
413 owngroups string list unset redirect 4.00
414 pass_on_timeout boolean false routers 4.00
415 pass_router string unset routers 4.00
416 path string "/usr/bin" pipe
417 percent_hack_domains domain list unset main
418 perl_at_start boolean false main 2.10
419 perl_startup string unset main 2.10
420 permit_coredump boolean false pipe 4.73
421 pgsql_servers string list unset main 3.14
422 pid_file_path string ++ main
423 pipe_as_creator boolean false pipe
424 pipe_transport string* unset redirect 4.00
425 pipelining_advertise_hosts host list "*" main 4.14
426 pipelining__connect_advertise_hosts host list "*" main 4.92 if experimental_pipe_connect
427 port integer 0 iplookup 4.00
429 preserve_message_logs boolean false main
430 prdr_enable boolean false main 4.82 if experimental_prdr
431 primary_hostname string + main
432 print_topbitchars boolean false main 1.89
433 process_log_path string unset main 4.21
434 prod_requires_admin boolean true main 1.70
435 protocol string "udp" iplookup 4.00
436 string "smtp" smtp 3.20
437 public_name string unset authenticators 3.10
438 qualify_domain string + main
439 string* unset redirect 4.31
440 qualify_preserve_domain boolean false redirect 4.00
441 qualify_recipient string + main
442 qualify_single boolean true dnslookup 4.00
443 query string* + iplookup 4.00
444 queue_domains domain list unset main 4.00
445 queue_list_requires_admin boolean true main 1.95
446 queue_only boolean false main
447 queue_only_file string unset main 2.05
448 queue_only_load fixed-point unset main
449 queue_only_load_latch boolean true main 4.68
450 queue_only_override boolean true main 4.21
451 queue_run_in_order boolean false main 1.70
452 queue_run_max integer 5 main
453 queue_smtp_domains domain list unset main
454 quota string* unset appendfile 1.60
455 quota_directory string* unset appendfile 4.11
456 quota_filecount integer 0 appendfile 2.05
457 quota_is_inclusive boolean true appendfile 3.20
458 quota_size_regex string unset appendfile 3.14
459 quota_warn_message string* + appendfile 2.10
460 quota_warn_threshold string* 0 appendfile 2.10
461 rcpt_include_affixes boolean false transports 4.21
462 receive_timeout time 0s main 4.00 replacing accept_timeout
463 received_header_text string* + main
464 received_headers_max integer 30 main
465 recipient_unqualified_hosts host list unset main 4.00 replacing receiver_unqualified_hosts
466 recipients_max integer 0 main 1.60
467 recipients_max_reject boolean false main 1.70
468 redirect_router string unset routers 4.00
469 remote_max_parallel integer 1 main
470 remote_sort_domains domain list unset main 4.00 replacing remote_sort
471 repeat_use boolean true redirect 4.00
472 reply_to string* unset autoreply 2.05
473 reply_transport string* unset redirect 4.00
474 require_files string list* unset routers 4.00
475 reroute string* unset iplookup 4.00
476 response_pattern string unset iplookup 4.00
477 restrict_to_path boolean false pipe
478 retry_data_expire time 7d main 3.03
479 retry_include_ip_address boolean true smtp 1.92
480 retry_interval_max time 24h main
481 retry_use_local_part boolean + routers 4.00
482 + transports 4.00 replacing individual options
483 return_fail_output boolean false pipe 1.60
484 return_message boolean false autoreply
485 return_output boolean false pipe
486 return_path string* unset transports 2.05
487 return_path_add boolean false transports
488 return_path_remove boolean true main
489 return_size_limit integer 100K main renamed bounce_return_size_limit in 4.23
490 rewrite boolean true redirect 4.00
491 rewrite_headers boolean true dnslookup 4.00
492 rfc1413_hosts host list * main
493 rfc1413_query_timeout time 5s main
494 router_home_directory string* unset routers 4.11
495 route_data string* unset manualroute 4.00
496 route_list string list unset manualroute 4.00
497 same_domain_copy_routing boolean false dnslookup 4.00
498 search_parents boolean false dnslookup 4.00
499 self string "freeze" routers 4.00
500 sender_unqualified_hosts host list unset main
501 senders address list unset routers 4.00
502 serialize_hosts host list unset smtp 1.60
503 server_advertise_condition string* unset authenticators 4.14
504 server_channelbinding bool false gsasl 4.80
505 server_condition string* unset authenticators 3.10 (plaintext) 4.64 (others)
506 server_hostname string* "$primary_hostname" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
507 server_keytab string* unset heimdal_gssapi 4.80
508 server_mail_auth_condition string* unset authenticators 3.22
509 server_mech string public_name cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
510 server_password string unset gsasl 4.80
511 server_param1 string* unset tls (auth) 4.86
512 server_param2 string* unset tls (auth) 4.86
513 server_param3 string* unset tls (auth) 4.86
514 server_param2 string* unset tls (auth) 4.86 (tls-only) 4.93 (external)
515 server_param3 string* unset tls (auth) 4.86 (tls-only) 4.93 (external)
516 server_prompts string* unset plaintext 3.10
517 server_realm string unset cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
518 server_scram_iter string* unset gsasl 4.80
519 server_scram_salt string* unset gsasl 4.80
520 server_secret string* unset cram_md5 3.10
521 server_service string "smtp" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
522 server_set_id string* unset authenticators 3.10
523 set string* unset routers 4.93
524 shadow_condition string* unset transports
525 shadow_transport string unset transports
526 size_addition integer 1024 smtp 1.91
527 skip_syntax_errors boolean false redirect 4.00
528 smtp_accept_keepalive boolean true main
529 smtp_accept_max integer 20 main
530 smtp_accept_max_nonmail integer 10 main 4.11
531 smtp_accept_max_nonmail_hosts host list * main 4.14
532 smtp_accept_max_per_connection integer 1000 main 4.00
533 smtp_accept_max_per_host integer 0 main 2.05
534 smtp_accept_queue integer 0 main
535 smtp_accept_queue_per_connection integer 10 main 2.03
536 smtp_accept_reserve integer 0 main
537 smtp_active_hostname string* unset main 4.33
538 smtp_banner string* + main
539 smtp_check_spool_space boolean true main 2.10
540 smtp_connect_backlog integer 5 main
541 smtp_enforce_sync boolean true main 4.00
542 smtp_etrn_command string* unset main 1.92
543 smtp_etrn_serialize boolean true main 1.89
544 smtp_load_reserve fixed-point unset main
545 smtp_max_synprot_errors integer 3 main 4.30
546 smtp_max_unknown_commands integer 3 main 4.14
547 smtp_ratelimit_hosts host list unset main 4.00
548 smtp_ratelimit_mail string unset main 4.00
549 smtp_ratelimit_rcpt string unset main 4.00
550 smtp_receive_timeout time 5m main
551 smtp_reserve_hosts host list unset main
552 smtp_return_error_details boolean false main 4.11
553 socket string* unset lmtp 4.11
554 spamd_address string* + main 4.50 with content scan
555 split_spool_directory boolean false main 1.70
556 spool_directory string ++ main
557 spool_wireformat boolean false main 4.90
558 sqlite_lock_timeout time 5s main 4.53
559 strict_acl_vars boolean false main 4.64
560 srv_fail_domains domain list unset dnslookup 4.43
561 strip_excess_angle_brackets boolean false main
562 strip_trailing_dot boolean false main
563 subject string* unset autoreply
564 syntax_errors_text string* unset redirect 4.00
565 syntax_errors_to string unset redirect 4.00
566 syslog_duplication boolean true main 4.21
567 syslog_facility string unset main 4.20
568 syslog_processname string "exim" main 4.20
569 syslog_timestamp boolean true main 4.00
570 system_filter string unset main 4.00 replacing message_filter
571 system_filter_directory_transport string unset main 4.00 replacing message_filter
572 system_filter_file_transport string unset main 4.00 replacing message_filter
573 system_filter_group string unset main 4.00 replacing message_filter
574 system_filter_pipe_transport string unset main 4.00 replacing message_filter
575 system_filter_reply_transport string unset main 4.00 replacing message_filter
576 system_filter_user string unset main 4.00 replacing message_filter
577 tcp_nodelay boolean true main 4.23
579 tcp_wrappers_daemon_name string* ++ main 4.73
580 temp_errors string list + pipe 1.95
581 text string* unset autoreply
582 timeout time 5m lmtp 3.20
586 timeout_defer boolean false pipe 4.51
587 timeout_frozen_after time 0s main 3.20
588 timezone string + main 3.15
589 tls_advertise_hosts host list * main 3.20
590 tls_advertise_requiretls host list * main 4.92 if experimental_requiretls
591 tls_certificate string* unset main 3.20
593 tls_dh_max_bits integer 2236 main 4.80
594 tls_dh_min_bits integer 1024 smtp 4.82
595 tls_dhparam string* unset main 3.20
596 tls_ocsp_file string* unset main 4.80 if experimental_ocsp
597 tls_on_connect_ports string unset main 4.43
598 tls_privatekey string* unset main 3.20
600 tls_remember_emstp boolean false main 4.21
601 tls_require_ciphers string* unset smtp 4.00 replaces tls_verify_ciphers
602 string* unset main 4.33
603 tls_sni string* unset main 4.80
604 tls_tempfail_tryclear boolean true smtp 4.05
605 tls_try_verify_hosts host list unset main 4.00
606 tls_verify_certificates string* unset main 3.20
608 tls_verify_hosts host list unset main 3.20
609 to string* unset autoreply
610 translate_ip_address string unset routers 4.00
611 transport string* unset routers 4.00
612 transport_current_directory string unset routers 4.00
613 transport_home_directory string unset routers 4.00
614 transport_filter string unset transports
615 transport_filter_timeout time 5m transports 4.30
616 trusted_groups string list unset main
617 trusted_users string list unset main
618 umask octal-integer 022 pipe
619 unknown_login string unset main
620 unknown_username string unset main
621 unseen boolean false routers 4.00
622 untrusted_set_sender boolean false main 3.20
623 use_bsmtp boolean false appendfile 4.00
625 use_crlf boolean false appendfile 1.89
627 use_fcntl_lock boolean + appendfile 1.70
628 use_flock_lock boolean + appendfile 4.11
629 use_lockfile boolean + appendfile
630 use_mbx_lock boolean + appendfile 2.10
631 use_shell boolean false pipe 1.70
632 user string + routers 4.00
633 unset transports 4.00 replaces individual options
634 utf8_downconvert integer unset smtp 4.92 if SUPPORT_I18N
635 uucp_from_pattern string + main 1.75
636 uucp_from_sender string* "$1" main 1.75
637 verify boolean true routers 4.00
638 verify_only boolean false routers 4.00
639 verify_recipient boolean true routers 4.00
640 verify_sender boolean true routers 4.00
641 warn_message_file string unset main 4.00
642 widen_domains string list unset dnslookup 4.00
643 write_rejectlog boolean true main 4.31
647 2. COMMAND LINE OPTIONS
648 -----------------------
650 The table below contains a complete list of all Exim's command line options.
651 Those marked with # are available only to trusted users, those marked with +
652 are available only to admin users, and those marked with * exist only to
653 provide compatibility with Sendmail.
656 --help Give a little help (not a lot)
657 --version Give version information (alias for -bV)
660 -bdf + Start daemon and run it in the foreground
661 -be Test string expansion
662 -bem Test string expansion, read test message first
663 -bF Test system filter file
664 -bf Test user filter file
665 -bfd Set domain for filter testing
666 -bfl Set local part for filter testing
667 -bfp Set local part prefix for filter testing
668 -bfs Set local part suffix for filter testing
669 -bh Test incoming SMTP call, omitting callouts
670 -bhc Test incoming SMTP call, with callouts
671 -bi * Run <command>bi_command</command>
672 -bI:help Show list of accepted -bI:<tag> options
673 -bm Accept message on standard input
674 -bmalware + Invoke configured malware scanning against supplied filename
675 -bnq Don't qualify addresses in locally submitted messages
676 -bP Show configuration option settings
678 -bpa + ... with generated addresses as well
679 -bpc + ... but just show a count of messages
680 -bpr + ... do not sort
681 -bpra + ... with generated addresses, unsorted
682 -bpru + ... only undelivered addresses, unsorted
683 -bpu + ... only undelivered addresses
684 -brt Test retry rules
685 -brw Test rewriting rules
686 -bS Read batch SMTP on standard input
687 -bs Run SMTP on standard input and output
688 -bt Test address directing and routing
689 -bV Verify version number
690 -bv Test recipient address verification
691 -bvs Test sender address verification
692 -bw + Inetd wait mode
693 -C + Use alternate configuration file
694 -D + Define macro for configuration file
695 -d + Turn on debugging output
696 -dd + Ditto, but if a daemon, not for subprocesses
697 -dropcr Remove CR character in input: became a no-op in 4.21
699 -ex * Synonym for -oex (for several different x)
700 -F Set calling user name
701 -f # Set calling user address
704 -i Dot does not terminate message
705 -M + Force deliver specific message
706 -Mar + Add recipient to message
707 -MC Internal use only
708 -MCA Internal use only
709 -MCP Internal use only
710 -MCQ Internal use only
711 -MCS Internal use only
712 -MCT Internal use only
713 -Mc + Deliver specific message
714 -Mes + Edit message sender
715 -Mf + Freeze message(s)
716 -Mg + Give up (bounce) message(s)
717 -Mmad + Mark all recipients delivered
718 -Mmd + Mark one recipient delivered
719 -Mrm + Remove message(s) (no bounce)
720 -Mset + Load message's variables when testing with -be
721 -Mt + Thaw message(s)
722 -Mvb + View message body
723 -Mvc + View entire message in RFC 2822 format
724 -Mvh + View message header
725 -Mvl + View message log
727 -N + Deliver without transporting
730 -oA * Supply argument for <option>-bi</option>
731 -oB Set max messages down one connection
732 -odb Background delivery
733 -odf Foreground delivery
734 -odi Foreground delivery
735 -odq Queue message; do not deliver
736 -odqs ... do not do SMTP deliveries
737 -oee Error sent by mail; zero return code
738 -oem Error sent by mail; non-zero return code
739 -oep Error written to standard error stream
740 -oeq * Error written to standard error stream
741 -oew * Error sent by mail; non-zero return code
742 -oi Dot does not terminate message
743 -oitrue * Dot does not terminate message
744 -oMa # Supply host address
745 -oMaa # Supply authenticator name
746 -oMai # Supply authenticated id
747 -oMas # Supply authenticated sender
748 -oMi # Supply interface address
749 -oMm # Supply message reference
750 -oMr # Supply protocol name
751 -oMs # Supply host name
752 -oMt # Supply ident string
755 -oP * Specify path for daemon's pid file
756 -or Timeout non-SMTP messages
757 -os Timeout for SMTP messages
758 -ov * Verbose; same as -v
759 -oX Alternative port for daemon
760 -pd Delay Perl interpreter start
761 -ps Do not delay Perl interpreter start
762 -p<r>:<s> * Same as -oMr <r> -oMs <s>
764 -qf + ... force delivery ) Other combinations are
765 -qff + ... and include frozen messages ) possible. The syntax is
766 -qi + ... initial deliveries only )
767 -ql + ... local deliveries only ) -q[q][f][f][i|l][time]
768 -qq + Two-stage queue run )
771 -R Select by recipient in queue run
773 -Rff ... and frozen messages
774 -Rr ... using regular expression
775 -Rrf ... with forcing
776 -Rrff ... and frozen messages
778 -S Select by sender in queue run
780 -Sff ... and frozen messages
781 -Sr ... using regular expression
782 -Srf ... with forcing
783 -Srff ... and frozen messages
784 -Tqt * Used by Exim test suite; not recognized in normal use
785 -t Take recipients from header lines
787 -tls-on-connect Do TLS on startup (for legacy clients)
789 -v Verbose - shows SMTP dialogue and other delivery info
790 -x Ignored (AIX compatibility)
793 3. BUILD TIME OPTIONS FOR EXIM
794 ------------------------------
796 The table below contains a "mostly" complete list of options that can be
797 set in Local/Makefile when building Exim. The only items not included are
798 those whose names can be trivially derived from rules stated below.
800 More information about individual options can be found in src/EDITME and
803 The second column below gives the type of option:
805 . `system' means the option is concerned with the operating system;
807 . `driver' means the option selects a driver to be included in the binary;
809 . `lookup' means the option selects a lookuptype to be included in the binary;
811 . `mandatory' means the option is required to be supplied;
813 . `recommended' means the option is recommended to be supplied;
815 . `optional' means what it says;
817 Those marked with * are specialized and are unlikely to be required in most
818 installations. Those that are marked with ** are commonly set in OS-specific
819 Makefiles. If you use any of these in your Local/Makefile, you may need to
820 reproduce some of the OS-specific settings. For example, in the Makefile for
821 Solaris (which is actually called OS/Makefile-SunOS5), there is
823 LIBS=-lsocket -lnsl -lkstat
825 If you use LIBS to add extra libraries, you must also include the OS ones in
826 your setting. It is better, in this particular case, to use EXTRALIBS, which is
827 empty by default, and is provided for just this reason. Of course, if you do
828 actually want to modify a setting from the OS-specific file, there is nothing
829 to stop you overriding it in your Local/Makefile.
831 When building Exim with dynamically loaded lookup support, for "LOOKUP_FOO",
832 you can define "LOOKUP_FOO_INCLUDE" and "LOOKUP_FOO_LIBS", for includes and
833 libraries specific only to that module. These rules are only used where the
834 relevant lookup is a module. These options are not explicitly listed below.
836 Variables with names endined `_PC' are used for pkg-config integration; setting
837 the value to the name of a pkg-config package will cause Exim's build system to
838 query the --cflags and --libs for the given name, when building anything
839 dependent upon the component associated with the `_PC' variable. For lookups,
840 if the lookup is dynamically loaded, then this *replaces* the use of the
841 corresponding _INCLUDE and _LIBS options, which will be ignored. If the lookup
842 is statically loaded into Exim, the results will be inserted into the
843 "LOOKUP_INCLUDE" and "LOOKUP_LIBS" options. For authenticator, the results
844 will be inserted into the "CFLAGS" and "AUTH_LIBS" options. These options are
845 only listed below for the TLS implementation cases.
848 Option Type Description
849 ------------------------------------------------------------------------------
851 ALT_CONFIG_PREFIX optional restricts location of -C files
852 APPENDFILE_MODE optional*
853 APPENDFILE_DIRECTORY_MODE optional*
854 APPENDFILE_LOCKFILE_MODE optional*
855 AR system command to build a library
856 AUTH_CRAM_MD5 driver include cram_md5 authenticator
857 AUTH_CYRUS_SASL driver include Cyrus SASL authenticator
858 AUTH_GSASL driver include GNU SASL authenticator
859 AUTH_HEIMDAL_GSSAPI driver include Heimdal GSSAPI authenticator
860 AUTH_LIBS system library linkage for authenticators
861 AUTH_PLAINTEXT driver include plaintext authenticator
862 AUTH_SPA driver include SPA (NTLM) authenticator
863 AUTH_VARS=3 optional* number of $auth variables
864 BASENAME_COMMAND system** path to basename
865 BASE_62=62 optional* not normally changed for Unix
866 BIN_DIRECTORY mandatory Exim binary directory
867 CC system** C compiler
868 CFLAGS system** flags for C compiler
869 CFLAGS_DYNAMIC system** extra flags needed for .so modules
870 CHGRP_COMMAND system** path to chgrp
871 CHOWN_COMMAND system** path to chown
872 COMPRESS_COMMAND system path to a compress command
873 COMPRESS_SUFFIX system suffix added to compressed files
874 CONFIGURE_FILE mandatory Exim runtime configuration file
875 CONFIGURE_FILE_USE_EUID optional*
876 CONFIGURE_FILE_USE_NODE optional*
877 CONFIGURE_GROUP optional* alternate group for configuration file
878 CONFIGURE_OWNER optional* alternate owner for configuration file
879 CYRUS_PWCHECK_SOCKET optional socket for pwcheck daemon
880 DBMLIB optional** location of DBM library
881 DB_DIRECTORY_MODE optional* mode for hints directory
882 DB_LOCKFILE_MODE optional* mode for hints lock files
883 DB_LOCK_TIMEOUT optional* timeout for hints lock files
884 DB_MODE optional* mode for hints files
885 DEFAULT_CRYPT optional default crypt() function
886 DELIVER_IN_BUFFER_SIZE optional*
887 DELIVER_OUT_BUFFER_SIZE optional*
888 DISABLE_DKIM optional disables DKIM support
889 DISABLE_DNSSEC optional disables attempts to use DNSSEC
890 DISABLE_D_OPTION optional disables -D option
891 ERRNO_QUOTA optional* error code for system quota failures
892 EXICYCLOG_MAX optional number of old log files to keep
893 EXIMDB_DIRECTORY_MODE optional* for hints database directory
894 EXIMDB_LOCKFILE_MODE optional* for hints lock files
895 EXIMDB_MODE optional* mode for hints files
896 EXIMON_TEXTPOP system**
898 EXIM_GROUP mandatory group to use for Exim
899 EXIM_MONITOR optional set to eximon.bin to compile
901 EXIM_USER mandatory user to use for Exim
902 EXIWHAT_EGREP_ARG system** to find Exim processes from ps
903 EXIWHAT_KILL_SIGNAL system** -SIGUSR1 or numerical equivalent
904 EXIWHAT_MULTIKILL_CMD system**
905 EXIWHAT_MULTIKILL_ARG system**
906 EXIWHAT_PS_ARG system** to list all processes
907 EXIWHAT_PS_CMD system** path to ps command
908 EXPAND_LISTMATCH_RHS optional* restore pre-4.77 match_*{}{} behaviour
909 EXTRALIBS system additional libraries
910 EXTRALIBS_EXIM system additional libraries for Exim only
911 EXTRALIBS_EXIMON system additional libraries for the monitor
912 FIXED_NEVER_USERS optional can't override at runtime
913 HAVE_ICONV system the iconv() function is available
914 HAVE_IPV6 system include IPv6 support
915 HEADERS_CHARSET optional charset for decoded header lines
916 HEADER_ADD_BUFFER_SIZE optional* buffer for header_add()
917 HEADER_MAXSIZE optional* max memory for message header
918 HOSTNAME_COMMAND system** path to hostname command
919 INCLUDE system path to include files
920 INFO_DIRECTORY optional directory for Info documentation
921 INPUT_DIRECTORY_MODE optional mode for input directory
922 IPV6_INCLUDE system additional includes for IPv6
923 IPV6_LIBS system additional libraries for IPv6
924 LDAP_LIB_TYPE optional type of LDAP library
925 LFLAGS system** link editor flags
926 LIBIDENTCFLAGS system C flags when compiling libident
927 LIBIDENTNAME system name for libident library
928 LIBRESOLV system** library for DNS resolver
929 LIBS system** additional libraries
930 LIBS_EXIM system** additional libraries for Exim ony
931 LIBS_EXIMON system** additional libraries for monitor
932 LOCAL_SCAN_SOURCE optional location of local_scan() source
933 LOG_DIRECTORY_MODE optional mode for log directory
934 LOG_FILE_PATH optional path to log files
935 LOG_MODE optional mode for log files
936 LOOKUP_CDB lookup include cdb lookup
937 LOOKUP_DBM lookup include dbm lookup
938 LOOKUP_DNSDB lookup include dnsdb lookup
939 LOOKUP_DSEARCH lookup include dsearch lookup
940 LOOKUP_INCLUDE lookup include files for lookups
941 LOOKUP_LDAP lookup include ldap lookup
942 LOOKUP_LIBS lookup include libraries for lookups
943 LOOKUP_LSEARCH lookup include all lsearch lookups
944 LOOKUP_MODULE_DIR optional* where dynamic lookup modules live
945 LOOKUP_MYSQL lookup include mysql lookup
946 LOOKUP_NIS lookup include nis lookup
947 LOOKUP_NISPLUS lookup include nisplus lookup
948 LOOKUP_ORACLE lookup include oracle lookup
949 LOOKUP_PGSQL lookup include pgsql lookup
950 LOOKUP_TESTDB lookup*
951 LOOKUP_WHOSON lookup include whoson lookup
952 LOOKUP_*_INCLUDE optional* include files for dynamic module
953 LOOKUP_*_LIBS optional* libraries for dynamic module
954 MAKE_SHELL optional* shell to use for make
955 MAX_FILTER_SIZE optional* max file size for filter files
956 MAX_INCLUDE_SIZE optional* max file size for :include: files
957 MAX_LOCALHOST_NUMBER=256 optional* for when localhost_number is set
958 MAX_NAMED_LIST optional* max named lists of a given type
959 MAX_INTERFACES system maximum network interfaces
960 MSGLOG_DIRECTORY_MODE optional* mode for message log directory
961 MV_COMMAND system path to mv command
962 NO_SYMLINK optional install doesn't make 'exim" symlink
963 PCRE_CONFIG system* use pcre-config for PCRE support
964 PCRE_LIBS system* library for using PCRE
965 PERL_CC system* compiler for Perl interface code
966 PERL_CCOPTS system* flags for same
967 PERL_COMMAND system path to Perl
968 PERL_LIBS system* library for compiling Perl interface
969 PID_FILE_PATH optional path to daemon's pid file
970 RADIUS_CONFIG_FILE optional path to Radius config file
971 RADIUS_LIB_TYPE optional type of RADIUS library
972 RANLIB system** path to ranlib command
973 RM_COMMAND system path to rm command
974 ROUTER_ACCEPT driver include accept router
975 ROUTER_DNSLOOKUP driver include dnslookup router
976 ROUTER_MANUALROUTE driver include manualroute router
977 ROUTER_IPLITERAL driver include ipliteral router
978 ROUTER_IPLOOKUP driver include iplookup router
979 ROUTER_REDIRECT driver include redirect router
980 ROUTER_QUERYPROGRAM driver include queryprogram router
981 SPOOL_DIRECTORY recommended path to spool directory
982 SPOOL_DIRECTORY_MODE optional mode of spool directory
983 SPOOL_MODE optional mode of spool files
984 STRING_SPRINTF_BUFFER_SIZE optional* buffer for string_sprintf()
985 STRIP_COMMAND optional* can be used to strp binaries
986 SUPPORT_A6 optional* support A6 DNS records
987 SUPPORT_CRYPTEQ optional support crypteq (if no auths)
988 SUPPORT_MAILDIR optional support for maildir delivery
989 SUPPORT_MAILSTORE optional support for mailstore delivery
990 SUPPORT_MBX optional support for MBX delivery
991 SUPPORT_MOVE_FROZEN_MESSAGES optional* support for frozen message moving
992 SUPPORT_PAM optional support for PAM authentication
993 SUPPORT_TLS optional support for TLS encryption over SMTP
994 SUPPORT_TRANSLATE_IP_ADDRESS optional* support for address translation
995 SYSLOG_LOG_PID optional add pid to syslog lines
996 SYSLOG_LONG_LINES optional do not split long syslog lines
997 SYSTEM_ALIASES_FILE optional defaults to /etc/aliases
998 TCP_WRAPPERS_DAEMON_NAME system* daemon name used by tcpwrappers library
999 TIMEZONE_DEFAULT optional default for timezone option
1000 TLS_INCLUDE optional path to include files for TLS
1001 TLS_LIBS optional additional libraries for TLS
1002 EXIM_TMPDIR system value for TMPDIR environment variable
1003 TRANSPORT_APPENDFILE driver include appendfile transport
1004 TRANSPORT_AUTOREPLY driver include autoreply transport
1005 TRANSPORT_LMTP driver include lmtp transport
1006 TRANSPORT_PIPE driver include pipe transport
1007 TRANSPORT_SMTP driver include smtp transport
1008 TRUSTED_CONFIG_LIST optional config files safe to retain privileges
1009 USE_DB system** use native DB interface
1010 USE_GNUTLS optional use GnuTLS instead of OpenSSL
1011 USE_GNUTLS_PC optional probably "gnutls"
1012 USE_OPENSSL_PC optional probably "openssl"
1013 USE_READLINE optional try to load libreadline for -be
1014 USE_TCP_WRAPPERS system link with tcpwrappers
1015 USE_TDB optional use the tdb DB interface
1016 WHITELIST_D_MACROS optional -Dmacros safe to retain privileges with
1017 WITH_OLD_CLAMAV_STREAM optional* use ClamAV API from before ClamAV 0.95
1018 X11 system** X11 base directory
1019 X11_LD_LIB system** X11 link library
1020 XINCLUDE system** X11 include directory
1021 XLFLAGS system** X11 link time flags
1022 ZCAT_COMMAND system path to zcat command
1025 4. BUILD TIME OPTIONS FOR EXIMON
1026 --------------------------------
1028 The table below contains a complete list of options that can be set in
1029 Local/eximon.conf when building the Exim monitor. Where the default is shown as
1030 ** it means that the text string is too long to fit in the table and is instead
1031 given below. A blank default means that there is no default value.
1033 ACTION_OUTPUT=no show output for every action
1034 ACTION_QUEUE_UPDATE=yes update queue display after actions
1035 BODY_MAX=20000 maximum body display
1036 DOMAIN= domain to strip from window title
1037 LOG_BUFFER=20K buffer for log tail
1038 LOG_DEPTH=300 depth of log subwindow
1039 LOG_FONT=** font for log display
1040 LOG_STRIPCHARTS=** patterns for stripcharts
1041 LOG_WIDTH=950 width of log subwindow
1042 MENU_EVENT='Shift<Btn1Down>' keypress for menu
1043 MIN_HEIGHT=162 minimum window height
1044 MIN_WIDTH=103 minimum window width
1045 QUALIFY_DOMAIN= local domain to strip from addresses
1046 QUEUE_DEPTH=200 depth of queue subwindow
1047 QUEUE_FONT=$LOG_FONT font for queue display
1048 QUEUE_INTERVAL=300 queue refresh interval
1049 QUEUE_MAX_ADDRESSES=10 max addresses to show in queue
1050 QUEUE_STRIPCHART_NAME=queue name for queue stripchart
1051 QUEUE_WIDTH=950 width of queue subwindow
1052 SIZE_STRIPCHART= request partition size stripchart
1053 SIZE_STRIPCHART_NAME=space name for size stripchart
1054 START_SMALL=no if yes, start with small window
1055 STRIPCHART_INTERVAL=60 stripchart refresh interval
1056 TEXT_DEPTH=200 depth of text windows
1057 WINDOW_TITLE="${hostname} eximon" window title
1059 The default for LOG_FONT is
1061 LOG_FONT=-misc-fixed-medium-r-normal-*-14-140-*-*-*-*-iso8859-1
1063 and the default for LOG_STRIPCHARTS is
1065 LOG_STRIPCHARTS='/ <= /in/
1067 / => .+ R=local/local/
1068 / => .+ T=[^ ]*smtp/smtp/'
1070 That is, there are four stripcharts, named in, out, local, and smtp. The first
1071 counts message arrivals, the second counts all deliveries, the third counts
1072 deliveries where the router's name starts with "local", and the fourth counts
1073 deliveries where the transport name contains "smtp".
1075 **** End of OptionLists ****
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