Event ID - 1278

Event Id1278
SourceMSExchangeMTA
DescriptionA locally-initiated %2 session-level transport connection to %4 was closed. Control block index = %1. [ %5%6%7%8] (8)
Event InformationAccording to Microsoft:
EXPLANATION:
A session-level transport connection initiated by this server was closed.
USER ACTION:
Look for other errors in the Event logs to try to determine the reason for the connection being dropped.
Reference LinksExchange (MSExchangeMTA)

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