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Policy to block my own e-mai domain (Blocking XYZ.com (my domain from outside)

Created: 27 Mars 2013 | 1 commentaire
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If all spam mails are originating from my domain we just need to block all received external mails received from my domain. How can we do this . 

Thanks

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This will help you:

How to create a compliance policy for blocking spoofing of the local domains on a Symantec Messaging Gateway.
http://www.symantec.com/docs/TECH97616

But i also recommend you read the following

Symantec Messaging Gateway (SMG) - Best Practices: Spam Control
http://www.symantec.com/docs/TECH90043
 

Specially the part regarding the BAP (BATV)

About defending against bounce attacks
http://www.symantec.com/docs/HOWTO53527