Source: GroupWise engine; administration engine.
Explanation: An MTA that performs eDirectory user synchronization obtains its eDirectory information from a server that is also being used in your GroupWise system as an LDAP server.
Possible Cause: You are trying to delete an LDAP server that is being used for eDirectory user synchronization as well as for LDAP.
Action: Reconfigure eDirectory synchronization. See "Using eDirectory User Synchronization" in "Message Transfer Agent" in the GroupWise 6.5 Administration Guide. Then delete the LDAP server.