Source: GroupWise Message Transfer Agent.
Explanation: The MTA cannot access the post office database (wphost.db).
Possible Cause: Insufficient memory.
Action: See GWMTA: Insufficient memory.
Possible Cause: The post office database has been damaged.
Action: Rebuild the post office database. See "Rebuilding Domain or Post Office Databases" in "Databases" in the GroupWise 6.5 Administration Guide.