Syslog_facility (mail) The syslog facility of Postfix logging. Queue_directory (see 'postconf -d' output) The location of the Postfix top-level queue directory. Process_name (read-only) The process name of a Postfix command or daemon process. Process_id (read-only) The process ID of a Postfix command or daemon process. Parent_domain_matches_subdomains (see 'postconf -d' output) What Postfix features match subdomains of "domain.tld" automatically, instead of requiring an explicit ".domain.tld" pattern. Max_use (100) The maximal number of incoming connections that a Postfix daemon process will service before terminating voluntarily. Max_idle (100s) The maximum amount of time that an idle Postfix daemon process waits for an incoming connection before terminating voluntarily. ![]() Ipc_timeout (3600s) The time limit for sending or receiving information over an internal communication channel. See postconf(5) for more details including examples.Ĭonfig_directory (see 'postconf -d' output) The default location of the Postfix main.cf and master.cf configuration files.ĭaemon_timeout (18000s) How much time a Postfix daemon process may take to handle a request before it is terminated by a built-in watchdog timer.įast_flush_domains ($relay_domains) Optional list of destinations that are eligible for per-destination logfiles with mail that is queued to those destinations.įast_flush_refresh_time (12h) The time after which a non-empty but unread per-destination "fast flush" logfile needs to be refreshed.įast_flush_purge_time (7d) The time after which an empty per-destination "fast flush" logfile is deleted. The text below provides only a parameter summary. Such mail typically only has recipients in one domain.Ĭhanges to main.cf are picked up automatically as flush(8) processes run for only a limited amount of time. ![]() This is not an issue for mail that is sent to a relay_domains destination because Upon receipt of a request to deliver mail for an eligible destination, the flush(8) server requests delivery of all messages that are listed in thatĭestination's logfile, regardless of the recipients of those messages. This can be automated with a suitable wakeup timer setting in the master.cf ![]() In order to maintain sanity, "refresh" must be executed periodically. Problems and transactions are logged to syslogd(8).įast flush logfiles are truncated only after a "send" request, not when mail is actually delivered, and therefore can accumulate outdated or redundant data. It does not talk to the network, and it does not talk to local users. The flush(8) server is not security-sensitive. This request completes in the background.ĭo a refresh for all per-destination logfiles. Refresh Refresh non-empty per-destination logfiles that were not read in $fast_flush_refresh_time hours, by simulating send requests (see above) for theĭelete empty per-destination logfiles that were not updated in $fast_flush_purge_time days. Send_file queueid Request delivery of the specified deferred message. Send_site sitename Request delivery of mail that is queued for the specified destination. This server implements the following requests:Īdd sitename queueid Inform the flush(8) server that the message with the specified queue ID is queued for the specified destination. The list of eligible destinations is specified with theįast_flush_domains configuration parameter, which defaults to $relay_domains. Per-destination logfiles of deferred mail are maintained only for eligible destinations. A destination is the part on the right-hand side of the right-most in an email address. A logfile is append-only, and is truncated whenĭelivery is requested for the corresponding destination. The record is implemented as a per-destination logfile with as contents the queue IDs of deferred mail. ![]() This program expects to be run from the master(8) process Request, and of its command-line equivalent, " sendmail -qR" or " postqueue -f". This information is used to improve the performance of the SMTP ETRN The flush(8) server maintains a record of deferred mail by destination.
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