If you are having a problem with the MTA but not receiving a specific error message, or if the suggested actions for the specific error did not resolve the problem, you can review more general troubleshooting strategies for dealing with MTA problems. See "Message Transfer Agent Problems" in "Strategies for Agent Problems" in GroupWise 6.5 Troubleshooting 2: Solutions to Common Problems.
You can also use GroupWise Monitor to troubleshoot message transfer problems. See Monitor.