In the Application Event Viewer on my Exchange 2003 Server, I’m seeing lot of entries like this: The remote host “58.89.214.194″ . . .

347940 pts.
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Event Viewer
Microsoft Exchange 2003
Microsoft Exchange errors
In the Application Event Viewer on my Exchange 2003 Server, I'm seeing lot of entries like this: The remote host "58.89.214.194", responded to the SMTP command "rcpt" with "550 No such address ". The full command sent was "RCPT TO:<+._-63terasaki@waseda.jp> ". This will probably cause the connection to fail. Anti-virus and anti-spam controls are in place in my environment and I do not have an open relay. Is there a way I can determine the source of these rogue outbound emails?

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This could be caused by backscatter.

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  • Labnuke99
    If they are rogue e-mails, are you absolutely sure you do not have an open relay? Try this service or this one to see if your host is permitting some relay. Check your connectors also to ensure that they are properly configured for your network. Turn on message tracking and review the logs.
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