We have an Exchange 2003 Server in our organisation which recently start getting a lot of 7004 and 7010 errors in the Apllication log.
The recent change we have made is configured a SMTP connector to differnt Exchange organisations as we recently merged with another company. I also get a lot of NDR Event ID 3005 messages which I never used to. Most of them are to email accounts that have been disabled, mispelled , or do not exist, but there are some legitamate ones as well.Diagnostic Logging is set to NONE. I am not aware of any mail flow problems from user point of view.
Event ID 7010
This is an SMTP protocol log for virtual server ID 1, connection #6349. The client at "x.x.x.xa "xexch50" command, and the SMTP server responded with "504 Need to authenticate first ". The full command sent was "xexch50 756 2". This will probably cause the connection to fail.
Points to a Exchange 5.5 server configured on Connector A
Event ID :7004
This is an SMTP protocol error log for virtual server ID 1, connection #6353. The remote host "x.x.x.x responded to the SMTP command "xexch50" with "504 Need to authenticate first ". The full command sent was "XEXCH50 2156 2 ". This will probably cause the connection to fail.
Points to a Exchange 2003 server configured on Connector B
I looked into
http://support.microsoft.com/default.aspx?scid=kb;en-us;843106 And it is saying it is a normal behaviour, if there is bo connector "Exchange Server 2003 computer in a different Exchange organization, if there is no connector configured for cross-forest trust between the Exchange organizations"
But we have a connector and forest trust relationship, so I am not sure.
Any advice is gretly appreciated .Thanks
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