Source: GroupWise Message Transfer Agent; message transfer protocol.
Explanation: The TCP port the MTA is configured to listen on is already in use by another program.
Possible Cause: Another MTA is already running on the server where you are trying to start this MTA.
Action: Configure this MTA to use a different TCP port. See "Using TCP/IP Links between Domains" in "Configuring the MTA" in the GroupWise 6.5 Administration Guide.