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Configure Symantec Mail Security Spam Filter to avoid generating backscatter

Posted on 2014-04-29
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Last Modified: 2014-07-01
Out mail server was recently blacklisted. After lots of investigating we have narrowed the issue down to us being blacklisted as we are generating backscatter.

We run Exchange 2007 (on a SBS 2008 server). We run Symantec Mail Security 7 as our mail security product.

The only way I could prevent us from being continually re-blacklisted was to disable the Symantec Premium Anti-spam feature.

I now need to look at re-enabling it in such a way to reduce incoming spam and also avoid the backscatter issue.

I am a little unclear exactly how the anti-spam function works and would ask if someone can answer a few newbie questions for me.

Question one is if I set Premium anti-spam to reject  Spam Messages/Suspected spam messages and SCL greater than 6/suspected spam, will the sender receive any warnings from our server that there message has been rejected?
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Question by:roy_batty
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David Atkin earned 500 total points
ID: 40029521
Hello,

If you are rejecting the mail then the sender should receive a bounce back email.  I believe there is an option to just quarantine or delete the email.

I'd suggest using the quarantine option where possible.  Mainly because you can release the email if required and you will reduce back scatter. Configure recipient notifications so that the users know a message has been quarantined (if required)
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by:roy_batty
ID: 40169093
Thanks for the help here.
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