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MSExchangeTransport error 7004

Posted on 2010-01-09
Medium Priority
Last Modified: 2013-11-30
Can anyone shed some light on the following error? I have logging enabled as suggested and I am getting a lot of these since.

Should I be worried?

Source      Event ID      Last Occurrence      Total Occurrences
7004      1/8/2010 6:17 PM      6 *
This is an SMTP protocol error log for virtual server ID 1, connection #86. The remote host "", responded to the SMTP command "xexch50" with "504 Need to authenticate first ". The full command sent was "XEXCH50 2088 2 ". This will probably cause the connection to fail. For more information, click http://www.microsoft.com/contentredirect.asp.
Question by:Rowy
LVL 74

Accepted Solution

Glen Knight earned 1000 total points
ID: 26274086
LVL 49

Assisted Solution

Akhater earned 1000 total points
ID: 26274127
assuming that all the "remote host" are not part of your organization then I wouldn't worry about it

Of course I am assuming that you are not experiencing any issues with your mail flow

Author Closing Comment

ID: 31675022
Thank you

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