When your spam filter flunks the test

On November 1, 2005, in Exchange, by

Ian pinged the blog and said….

This weekend we upgraded to Exchange SP2. Following the release note  😉  I ran Exchange Best Practice Analyser before the update to check I had installed the correct HotFixes. ExBPA passed without any problems so I continued with the update and everything went smooth. I then enabled IMF v2 using the same settings as before and then run ExBPA just a one last check. To my horror the ExBPA failed with:


SMTP instance ‘Default SMTP Virtual Server’ on server SF failed mail acceptance test. Check that the SMTP server is functioning correctly. Verb return: Respond = 550 5.7.1 Requested action not taken: message refused,.


On investigation I found that the new IMF blocks the test routing email that ExBPA sends and so ExBPA fails with a ciritical error. After changing my SCL in IMF the ExBPA passed.


I guess this means that people should revist their spam confidence levels after updating as things look a lot stricter.


Maybe we should ping that to the BPA gang…nothin’ like the test email being seen as spam



One Response to When your spam filter flunks the test

  1. Jon Avner says:

    This issue has been brought to our attention, and we are looking into it. Unfortunately, this was found a little too late to make it into this month’s new release and rules/update, but a fix will likely be in our next monthly update of our validation rules.

    Thanks for identifying the problem and we apologize for the inconvenience.

    – The ExBPA Development Team