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Protocol Log Exchange 2007

Posted on 2014-02-18
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We have a receive connector to relay email sent from application. one of owner application informed me that his application failed to send an email.

I'm checked there is no report from other application owner.

Based on protocol log, (attached). the application server tried to make SMTP session with receive connector at 14:00 but SMTP session doesn't completed. On 14:01, the SMTP session able to establish and the application to send an email.

My question why the 1st SMTP session (RED) attempt failed? Where do I checked? Any log or event available.

I notice that the 1st SMTP session (RED), the remote server didn't sent "HELO" command why on 2nd SMTP session (GREEN) the application server did sent "HELO" (Row 9) and receive connector did reply to the "HELO" (Row 10). Is that the issue?

Please advice
Book1.xlsx
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Question by:suriyaehnop
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by:Adam Brown
ID: 39868951
The session in Red was probably cut prematurely without notification. Basically the application probably bugged on the session and cut it off before it could send any data. There's no way to get any more data than what you have there, so there's no real way to determine the cause from your mail logs. The problem most likely lies in the sending application.
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by:suriyaehnop
ID: 39881411
Then it is not Exchange server issue right
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Adam Brown earned 1200 total points
ID: 39881453
Probably not.
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