MTA Slows or Stops Processing Messages

  • 7023691
  • 30-Jan-2019
  • 30-Jan-2019

Environment

GroupWise 18
GroupWise 2014 R2
GroupWise 2014
GroupWise 2012

Situation

GroupWise Message Transfer Agent (MTA) slows down or stops processing messages.  The maximum amount of inbound connections hits its maximum defined.  The MTA log shows the following message:
 
Maximum number of inbound connections (50) reached

Resolution

The anti virus software configuration was modified to exclude the GroupWise directories from scanning.

Cause

The anti virus software (Sophos) was configured to scan all the GroupWise directories.   This causes file lock issues and can lead to message files being modified in transit.   Some additional clues that can be seen in the MTA log will include entries like the following:
 
16:02:38 D1F3 MTP: domain: Received too much data.  Expected: 19912, Actual: 19913
16:02:38 D1B3 MTP: domain: Received too much data.  Expected: 19872, Actual: 19873
16:02:38 D19B MTP: domain: Received too much data.  Expected: 19916, Actual: 19917
16:02:38 D182 MTP: domain: Received too much data.  Expected: 14548, Actual: 14549

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