Exchange 5.5 relay problem

Posted on 2007-07-31
Last Modified: 2010-03-06
I have followed the guidelines to prevent relaying on my Exchange 5.5 server and am still relaying messages in the following format: (note the %). All the other address formats generate a relaying prohibited.

>>> RSET
<<< 250 OK - Reset
>>> MAIL FROM:<spamtest@[]>
<<< 250 OK - mail from <spamtest@[]>
>>> RCPT TO:<"">
<<< 250 OK - Recipient <"">

How can I fix this?
Question by:pirtekusa
    LVL 23

    Accepted Solution

    Turn off source routed email. I have forgotten how to do that with 5.5, google should help.

    Source routed email can fool 2K3 into accepting it too. Not sure on 2007 yet.

    Author Comment

    Looks like that did the trick...thanks

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