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RedHat 9 (Linux i386) - man page for qmqpd (redhat section 8)

QMQPD(8)										 QMQPD(8)

NAME
       qmqpd - Postfix QMQP server

SYNOPSIS
       qmqpd [generic Postfix daemon options]

DESCRIPTION
       The  Postfix  QMQP  server  receives  one  message  per connection.  Each message is piped
       through the cleanup(8) daemon, and is placed into the incoming queue as one  single  queue
       file.  The program expects to be run from the master(8) process manager.

       The  QMQP server implements one access policy: only explicitly authorized client hosts are
       allowed to use the service.

SECURITY
       The QMQP server is moderately security-sensitive. It talks to  QMQP  clients  and  to  DNS
       servers on the network. The QMQP server can be run chrooted at fixed low privilege.

DIAGNOSTICS
       Problems and transactions are logged to syslogd(8).

BUGS
       The QMQP protocol provides only one server reply per message delivery. It is therefore not
       possible to reject individual recipients.

       The QMQP protocol requires the server to receive the entire message before replying. If	a
       message	is  malformed,	or  if any netstring component is longer than acceptable, Postfix
       replies immediately and closes the connection. It is left up to the client to  handle  the
       situation.

CONFIGURATION PARAMETERS
       The  following main.cf parameters are especially relevant to this program. See the Postfix
       main.cf file for syntax details and for default values. Use  the  postfix  reload  command
       after a configuration change.

Miscellaneous
       always_bcc
	      Address to send a copy of each message that enters the system.

       debug_peer_level
	      Increment  in  verbose  logging  level  when a remote host matches a pattern in the
	      debug_peer_list parameter.

       debug_peer_list
	      List of domain or network patterns. When a remote host matches a pattern,  increase
	      the  verbose  logging level by the amount specified in the debug_peer_level parame-
	      ter.

       hopcount_limit
	      Limit the number of Received: message headers.

       qmqpd_authorized_clients
	      A list of domain or network patterns that specifies what clients are allowed to use
	      the service.

       qmqpd_timeout
	      Limit the time to send a server response and to receive a client request.

       soft_bounce
	      Change  hard (D) reject responses into soft (Z) reject responses.  This can be use-
	      ful for testing purposes.

Content inspection controls
       content_filter
	      The name of a mail delivery transport that filters mail  and  that  either  bounces
	      mail or re-injects the result back into Postfix.	This parameter uses the same syn-
	      tax as the right-hand side of a Postfix transport table.

Resource controls
       line_length_limit
	      Limit the amount of memory in bytes used for the handling of partial  input  lines,
	      and the length of sender and recipient addresses that are received from client.

       message_size_limit
	      Limit  the  total  size in bytes of a message, including on-disk storage for sender
	      and recipient address information.

Tarpitting
       qmqpd_error_sleep_time
	      Time to wait in seconds before informing the client of a problem. This  slows  down
	      run-away errors.

SEE ALSO
       http://cr.yp.to/proto/qmqp.html, QMQP protocol
       cleanup(8) message canonicalization
       master(8) process manager
       syslogd(8) system logging

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

											 QMQPD(8)


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