Exchange 5.5 relay problem

Posted on 2007-07-31
Medium Priority
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:<"securitytest%abuse.net">
<<< 250 OK - Recipient <"securitytest%abuse.net">

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

Accepted Solution

Stacy Spear earned 1500 total points
ID: 19621065
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

ID: 19624572
Looks like that did the trick...thanks

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