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Article ID: 116265, created on Jun 13, 2013, last review on Mar 1, 2018

  • Applies to:
  • Operations Automation

Symptoms

Duplicate messages are received by qmail users. The following errors can be found in the maillog:

root@server log]# less -i maillog.1 | grep "_but_connection_died"
Connected_to_<IP_address_1>_but_connection_died._Possible_duplicate!_timed_out_(#4.4.2)/
Nov 26 17:50:53 pemlinmail01 splogger: 1385484653.371186 delivery 208765: deferral: Connected_to_<IP_address_2>_but_connection_died._(#4.4.2)/
Nov 26 18:09:06 pemlinmail01 splogger: 1385485746.461143 delivery 209075: deferral: Connected_to_<IP_address_3>_but_connection_died._Possible_duplicate!_timed_out_(#4.4.2)/
Nov 26 18:11:33 pemlinmail01 splogger: 1385485893.930699 delivery 209114: deferral: Connected_to_<IP_address_4>_but_connection_died._(#4.4.2)/

Cause

Qmail cannot connect to remote host during the time specified in the /usr/local/qmail/shared/control/timeoutremote file.

Resolution

Increase timeout using command as below:

# echo 180 > /usr/local/qmail/shared/control/timeoutremote

caea8340e2d186a540518d08602aa065 5356b422f65bdad1c3e9edca5d74a1ae e12cea1d47a3125d335d68e6d4e15e07

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