Microsoft KB Archive/132529

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 * Microsoft Mail Gateway to X.400, version 3.0

SYMPTOMS
Version 3.x of Microsoft Mail Gateway to X.400 may not be able to successfully restart the gateway when you use a Restart Interval greater than zero. The Restart Interval, as documented on page 89 of the Microsoft Mail Gateway to X.400 "Administrator's Guide," determines how frequently the X400GATE program automatically stops and restarts. The following error is displayed when the gateway attempts to restart and fails:

ERROR 12 (restarting MTA): execv (N:\mailexe\x400gate.exe, argv) failed The gateway may also produce an error: ENOMEM (not enough memory)

CAUSE
Running out of memory will cause the heap to be sufficiently fragmented that the call to execv to restart the gateway will fail.

RESOLUTION
This issue has been resolved in version 3.2.016 were a _heapmin call was added to compact the heap before calling execv to restart the gateway.

STATUS
Microsoft has confirmed this to be a problem in version 3.x of Microsoft Mail Gateway to X.400. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
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Last reviewed: October 20, 1997

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