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Event ID: 9220 Source: MSExchangeMTA

Source
Level
Description
A sockets error 10047 on an open() call was detected. The MTA will attempt to recover the sockets connection. Control block index: 20. [BASE IL X25 DRIVER 12 261] (12)
Comments
 
As per Microsoft: "This event can occur when there is insufficient bandwidth or there are many network errors. It could be due to heap corruption when two or more threads in the message transfer agent (MTA) try to access the same data structures without proper synchronization. This event has been particularly noted in networks in which many associations are being opened and closed between MTAs. Frequently, these MTA failures are associated with slow and unreliable connections". See MSEX2K3DB for more details.

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