cPanel Spam Filtering

Taha Haider

• March 14, 2017 02:32

Hi, To combat spamming, I have enabled Greylisting ( No bypass SPF records ) and Apache SPAM Assassin ( score = 5 ), yet there are some spams which are coming in inbox, how can I avoid these kinds of spam emails and how can they be diverted directly to junk folder ?? I have WHM access, any suggestions to implement for all users ?

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  Taha Haider

  • March 14, 2017 13:51

  Hi, We are been using below options and so far it worked great to prevent spam mails.

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  • Enable RBL check (RBL: bl.spamcop.net, RBL: zen.spamhaus.org) from WHM > Exim Configuration > RBLs.
  • Even you can add custom RBL like Barracuda cpaneltips.com/add-barracuda-rbl-to-exim/ from WHM > Exim Configuration > RBLs > Manage Custom RBLs.
  • Enable SMTP Restriction from WHM > SMTP Restriction.

  If you enable all 3 options from above then be careful with option 3 as sometimes genuine sender IP matches in RBL. So at that time you can whitelist that IP from WHM > Exim Configuration > RBLs > Whitelist: IP addresses that should not be checked against RBLs. I hope this help.

  
  Well RBLs and SMTP Restrictions are enabled but i will add more custom RBLs now. 90% spam emails are being filtered but few passes through.

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  cPanelMichael

  • March 14, 2017 14:12

  Hello, You may also want to try the custom RBL referenced on the following thread: Anti-spam DNSBL by BOates Thank you.

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  Taha Haider

  • March 14, 2017 16:09

  Hello, You may also want to try the custom RBL referenced on the following thread: Anti-spam DNSBL by BOates Thank you.

  
  Noted I will check and update you with results

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