Improving SPAM filtering Questions

Metalmurphy

• September 15, 2016 06:01

Hello everyone, I'm not very satisfied with the current level of SPAM filtering in our server using cPanel and SpamAssassin and I'm looking for ways to improve it, however I have some questions on some of the changes I wanted to make, some I'm not even sure if are possible but maybe someone here can land me a hand with these. - Custom RBLs As of now using custom RBLs means that the email will be rejected at exim, completely ignoring any cPanel filters (like move to a Spam folder) or the SpamAssassin Whitelist. Is there a way to use Custom RBLs in a way that it assigns the message a certain Spam Score but doesn't flatout reject it? - Default Global/Mail filters for cPanel accounts Is there a way I can configure default Global/Mail account filters so that they are automatically created when a new cPanel account or E-mail account is created? I wanted to have 2 filters always created for any old or new account that would basically delete or move to spam folder any message with the spam score above a certain value. - Can I edit values for certain pre-existing rules, for example let's say I want RCVD_IN_SORBS_SPAM to receive a 5.0 value instead of 0.5, is it possible? Many thanks in advance.

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  cPanelMichael

  • September 22, 2016 14:59

  Hello,

  - Custom RBLs As of now using custom RBLs means that the email will be rejected at exim, completely ignoring any cPanel filters (like move to a Spam folder) or the SpamAssassin Whitelist. Is there a way to use Custom RBLs in a way that it assigns the message a certain Spam Score but doesn't flatout reject it?

  
  There's a post here that explains how to do this: New anti-spam DNSBL in the works -- looking for testers It's also a useful thread if you are looking for an additional way of blocking SPAM.

  - Default Global/Mail filters for cPanel accounts Is there a way I can configure default Global/Mail account filters so that they are automatically created when a new cPanel account or E-mail account is created? I wanted to have 2 filters always created for any old or new account that would basically delete or move to spam folder any message with the spam score above a certain value.

  
  You could implement a custom script that hooks into the email account creation process, but you may find a global system filter rule more effective. It's documented at: How to Customize the Exim System Filter File - cPanel Knowledge Base - cPanel Documentation

  - Can I edit values for certain pre-existing rules, for example let's say I want RCVD_IN_SORBS_SPAM to receive a 5.0 value instead of 0.5, is it possible?

  
  Yes, using the method referenced in the post above: New anti-spam DNSBL in the works -- looking for testers Thanks!

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