Source: GroupWise Message Transfer Agent.
Explanation: The MTA is in the process of clearing out a backlog of messages and is not accepting any additional messages into its queues. The MTA processes existing messages first, before processing new messages, so that messages arrive in the order in which they were sent.
Possible Cause: The backlog of messages might have been caused by one or more closed facilities in the domain.
Action: Wait until the backlog clears, then the MTA will resume its regular processing of new messages. Backlogged messages are stored in subdirectories of the mslocal directory.