Jump to: navigation, search
MithiWiki Home > ConnectXf Home > ConnectXf Administration > Configuration > Error in /var/log/maillog:Connected to (IP address) but connection died. (IP address)

Troubleshooting Icon.png
Product ConnectXf
Version All
Applies to Administrators
Level Advanced

Error in Maillog:Connected_to_[IP address]]_but_connection_died._(#4.4.2)


  • The maillog has a lot of instances similar to the following statement
Nov 16 12:40:18 greavesmail1 qmail: 1195197018.704790 delivery 8263: deferral: Connected_to_61.246.164.175_but_connection_died._(#4.4.2)/
  • The queue size is over the threshold

Probable cause

  • The packet size is too large for the current connectivity


  • Change the default packet size from 1600 to 1200 using the following command on the root prompt
ifconfig eth0 mtu 1200