QMGR(8) System Manager's Manual QMGR(8) (NAME) qmgr - Postfix (SYNOPSIS) qmgr [ Postfix] (DESCRIPTION) qmgr(8) Postfix . trivial-rewrite(8) . master(8) . double-bounce . (bounce notifications) . (MAIL QUEUES) qmgr(8) : incoming pickup(8) maildrop . active . active ( [leaky bucket] ). deferred . (exponential backoff) . corrupt . hold << >> (on hold) . (DELIVERY STATUS REPORTS) qmgr(8) . : bounce (bounce) . bounce(8) . defer . defer(8) . trace <> <> Postfix . trace(8) . qmgr(8) bounce(8) defer(8) trace(8) . (STRATEGIES) () () . leaky bucket active . fairness active incoming deferred . . slow start << >> (thundering herd) . round robin . (round-robin) . exponential backoff . . destination status cache . preemptive message scheduling / . (TRIGGERS) . . ( ): D (QMGR_REQ_SCAN_DEFERRED) . . I (QMGR_REQ_SCAN_INCOMING) . . A (QMGR_REQ_SCAN_ALL) . . F (QMGR_REQ_FLUSH_DEAD) (dead). W (TRIGGER_REQ_WAKEUP) master . . qmgr(8) . A F D I . A F D I . (STANDARDS) RFC 3463 ( ) RFC 3464 ( ) (SECURITY) qmgr(8) . (DoS) . qmgr(8) chroot . (DIAGNOSTICS) syslogd(8) postlogd(8) . corrupt . notify_classes (postmaster) (bounces) . (BUGS) (front-end) cleanup(8) . . (CONFIGURATION PARAMETERS) main.cf qmgr(8) . <> . . postconf(5) . transport master.cf . (COMPATIBILITY CONTROLS) 2.5 Postfix: allow_min_user (no) <<->> . Postfix 2.7 : default_filter_nexthop (empty) content_filter FILTER (next-hop) default_filter_nexthop$ . (ACTIVE QUEUE CONTROLS) qmgr_clog_warn_time (300s) Postfix . qmgr_message_active_limit (20000) . qmgr_message_recipient_limit (20000) Postfix << >> (dead). qmgr_message_recipient_minimum (10) . default_recipient_limit (20000) . transport_recipient_limit ($default_recipient_limit) default_recipient_limit transport master.cf . default_extra_recipient_limit (1000) . transport_extra_recipient_limit ($default_extra_recipient_limit) default_extra_recipient_limit transport master.cf . Postfix 2.4 : default_recipient_refill_limit (100) . transport_recipient_refill_limit ($default_recipient_refill_limit) default_recipient_refill_limit transport master.cf . default_recipient_refill_delay (5s) . transport_recipient_refill_delay ($default_recipient_refill_delay) default_recipient_refill_delay transport master.cf . (DELIVERY CONCURRENCY CONTROLS) initial_destination_concurrency (5) . default_destination_concurrency_limit (20) . transport_destination_concurrency_limit ($default_destination_concurrency_limit) default_destination_concurrency_limit transport master.cf . Postfix 2.5 : transport_initial_destination_concurrency ($initial_destination_concurrency) initial_destination_concurrency transport master.cf . default_destination_concurrency_failed_cohort_limit (1) (pseudo-cohorts) ( ) . transport_destination_concurrency_failed_cohort_limit ($default_destination_concurrency_failed_cohort_limit) default_destination_concurrency_failed_cohort_limit transport master.cf . default_destination_concurrency_negative_feedback (1) . transport_destination_concurrency_negative_feedback ($default_destination_concurrency_negative_feedback) default_destination_concurrency_negative_feedback transport master.cf . default_destination_concurrency_positive_feedback (1) . transport_destination_concurrency_positive_feedback ($default_destination_concurrency_positive_feedback) default_destination_concurrency_positive_feedback transport master.cf . destination_concurrency_feedback_debug (no) (verbose) . (RECIPIENT SCHEDULING CONTROLS) default_destination_recipient_limit (50) . transport_destination_recipient_limit ($default_destination_recipient_limit) default_destination_recipient_limit transport master.cf . (MESSAGE SCHEDULING CONTROLS) default_delivery_slot_cost (5) Postfix (preempt) . transport_delivery_slot_cost ($default_delivery_slot_cost) default_delivery_slot_cost transport master.cf . default_minimum_delivery_slots (3) Postfix . transport_minimum_delivery_slots ($default_minimum_delivery_slots) default_minimum_delivery_slots transport master.cf . default_delivery_slot_discount (50) _delivery_slot_discount . transport_delivery_slot_discount ($default_delivery_slot_discount) default_delivery_slot_discount transport master.cf . default_delivery_slot_loan (3) _delivery_slot_loan . transport_delivery_slot_loan ($default_delivery_slot_loan) default_delivery_slot_loan transport master.cf . (OTHER RESOURCE AND RATE CONTROLS) minimal_backoff_time (300s) (deferred) Postfix 2.4 1000s . maximal_backoff_time (4000s) . maximal_queue_lifetime (5d) maximal_queue_lifetime . queue_run_delay (300s) Postfix 2.4 1000s . transport_retry_time (60s) Postfix . Postfix 2.1 : bounce_queue_lifetime (5d) / bounce_queue_lifetime . Postfix 2.5 : default_destination_rate_delay (0s) . transport_destination_rate_delay ($default_destination_rate_delay) default_destination_rate_delay transport master.cf . Postfix 3.1 : default_transport_rate_delay (0s) . transport_transport_rate_delay ($default_transport_rate_delay) default_transport_rate_delay transport master.cf . (SAFETY CONTROLS) qmgr_daemon_timeout (1000s) Postfix . qmgr_ipc_timeout (60s) . Postfix 3.1 : address_verify_pending_request_limit (see 'postconf -d' output) Postfix . (MISCELLANEOUS CONTROLS) config_directory (see 'postconf -d' output) main.cf master.cf Postfix. defer_transports (empty) <> . delay_logging_resolution_limit (2) . helpful_warnings (yes) . process_id (read-only) Postfix. process_name (read-only) Postfix. queue_directory (see 'postconf -d' output) Postfix. syslog_facility (mail) Postfix. syslog_name (see 'postconf -d' output) syslog <> <> . Postfix 3.0 : confirm_delay_cleared (no) << >> . Postfix 3.3 : service_name (read-only) master.cf Postfix. Postfix 3.5 : info_log_address_format (external) (info warning ) . (FILES) /var/spool/postfix/incoming, /var/spool/postfix/active, /var/spool/postfix/deferred, /var/spool/postfix/bounce, /var/spool/postfix/defer, /var/spool/postfix/trace, (SEE ALSO) trivial-rewrite(8), bounce(8), postconf(5), master(5), master(8), postlogd(8), Postfix syslogd(8), README (README FILES) <> <> . SCHEDULER_README, QSHAPE_README, Postfix (LICENSE) Secure Mailer . (AUTHOR(S)) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA : Patrik Rak Modra 6 155 00, Prague, Czech Republic Wietse Venema Google, Inc. 111 8th Avenue New York, NY 10011, USA QMGR(8)