Postfix Overview - Introduction - SCN Research

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Specifies a minimum uid that will be accepted as a return from a virtual_owner_maps or virtual_uid_maps lookup. Returned values less than this will be rejected, and the message will be deferred. Page 3 of 4 virtual_uid_maps (regexp maps disallowed) Recipients are looked up in these maps to determine the user ID to be used when writing to the target mailbox. virtual_gid_maps (regexp maps disallowed) Recipients are looked up in these maps to determine the group ID to be used when writing to the target mailbox. Locking controls virtual_mailbox_lock How to lock UNIX-style mailboxes: one or more of flock, fcntl or dotlock. The dotlock method requires that the recipient UID or GID has write access to the parent directory of the mailbox file. This setting is ignored with maildir style delivery, because such deliveries are safe without explicit locks. Use the command postconf -m to find out what locking methods are available on your system. deliver_lock_attempts Limit the number of attempts to acquire an exclusive lock on a UNIX-style mailbox file. deliver_lock_delay Time (default: seconds) between successive attempts to acquire an exclusive lock on a UNIX-style mailbox file. The actual delay is slightly randomized. stale_lock_time Limit the time after which a stale lockfile is removed (applicable to UNIX-style mailboxes only). Resource controls virtual_destination_concurrency_limit Limit the number of parallel deliveries to the same domain via the virtual delivery agent. The default limit is taken from the default_destination_concurrency_limit parameter. The limit is enforced by the Postfix queue manager. HISTORY virtual_destination_recipient_limit Limit the number of recipients per message delivery via the virtual delivery agent. The default limit is taken from the default_destination_recipient_limit parameter. The limit is enforced by the Postfix queue manager. virtual_mailbox_limit The maximal size in bytes of a mailbox or maildir file. Set to zero to disable the limit. http://www.porcupine.org/postfix-mirror/virtual.8.html 6/26/01
This agent was originally based on the Postfix local delivery agent. Modifications mainly consisted of removing code that either was not applicable or that was not safe in this context: aliases, ~user/.forward files, delivery to "|command" or to /file/name. Page 4 of 4 The Delivered-To: header appears in the qmail Daniel Bernstein. system by The maildir structure appears in the qmail system by Daniel Bernstein. SEE ALSO bounce(8) non-delivery status reports syslogd(8) system logging qmgr(8) queue manager LICENSE The Secure Mailer license must be distributed with this software. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA Andrew McNamara andrewm@connect.com.au connect.com.au Pty. Ltd. Level 3, 213 Miller St North Sydney 2060, NSW, Australia 1 http://www.porcupine.org/postfix-mirror/virtual.8.html 6/26/01
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Postfix Overview - Introduction Pag
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Postfix Overview - Goals and Featur
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Postfix Overview - Global Architect
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Postfix Overview - Queue Management
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Postfix Overview - Security assista
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Postfix Anatomy - Receiving Mail Pa
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Postfix Anatomy - Delivering Mail p
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Postfix Anatomy - Command-line Util
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Postfix Configuration - Basics What
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Postfix Configuration - Basics My o
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Postfix Configuration - UCE Control
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Postfix Rate Controls Page 1 of 4 P
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Postfix Rate Controls The defer_tra
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Postfix Configuration - Resource Co
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Postfix Configuration - Resource Co
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Postfix Configuration - Address Man
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Postfix Configuration - Address Man
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ACCESS(5) ACCESS(5) Page 1 of 3 NAM
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1 Page 3 of 3 http://www.porcupine.
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ited to regular files. For example,
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BOUNCE(8) BOUNCE(8) Page 1 of 2 NAM
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CANONICAL(5) CANONICAL(5) Page 1 of
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canonical_maps List of canonical ma
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CONFIGURATION PARAMETERS The follow
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BOUNCE(8) BOUNCE(8) Page 1 of 2 NAM
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FLUSH(8) FLUSH(8) Page 1 of 3 NAME
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fast_flush_purge_time Remove an emp
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Problems and transactions are logge
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parameter. Page 4 of 5 Timeout cont
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LOCAL(8) LOCAL(8) Page 1 of 7 NAME
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estricts delivery to external comma
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details and for default values. Use
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that is written to upon delivery).
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Page 2 of 3 SIGTERM Upon receipt of
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PCRE_TABLE(5) PCRE_TABLE(5) Page 1
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PICKUP(8) PICKUP(8) Page 1 of 2 NAM
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PIPE(8) PIPE(8) Page 1 of 5 NAME pi
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This macro expands to the extension
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ounce(8) non-delivery status report
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-r When updating a table, do not wa
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POSTCAT(1) POSTCAT(1) Page 1 of 1 N
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POSTDROP(1) POSTDROP(1) Page 1 of 2
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POSTFIX(1) POSTFIX(1) Page 1 of 2 N
Page 100 and 101: POSTKICK(1) POSTKICK(1) Page 1 of 2
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Page 106 and 107: default, postmap creates a new data
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Page 110 and 111: LICENSE The Secure Mailer license m
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Page 120 and 121: Yorktown Heights, NY 10598, USA Pag
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Page 124 and 125: Page 4 of 5 DIAGNOSTICS Problems ar
Page 126 and 127: SHOWQ(8) SHOWQ(8) Page 1 of 1 NAME
Page 128 and 129: command after a configuration chang
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Page 136 and 137: SPAWN(8) SPAWN(8) Page 1 of 2 NAME
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Page 140 and 141: the entire domain being looked up.
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Page 144 and 145: VIRTUAL(5) VIRTUAL(5) Page 1 of 4 N
Page 146 and 147: site is equal to $myorigin, when si
Page 148 and 149: VIRTUAL(8) VIRTUAL(8) Page 1 of 4 N
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