Blocking incoming mail from owned domains

saltydk

• May 28, 2016 23:09

Hey guys, I would like to know if, and possibly how, it is possible to block incoming mails from owned domains, which are only sending/receiving on the server itself, so that I can "easily" filter away those spam mails at least. Most occurrences of this type of spam usually sends a mail with the "sender" as the receiver. I am hoping that cPanel is capable of differentiating between if the mail came from an external source. Thanks for any assistance provided in advance, I am not very experienced in the advanced settings department but if you can point me in the right direction I can probably manage. Best regards, Ren".

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  cPanelMichael

  • June 02, 2016 17:05

  Hello, You could enable the following option in "WHM Home " Service Configuration " Exim Configuration Manager" under the "ACL Options" tab to help prevent these types of emails: "Reject SPF failures" This will reject mail at SMTP time if the sender fails SPF checks. Thank you.

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  saltydk

  • June 08, 2016 00:34

  Does this option only reject the domains with SPF setup (hard fail) or does it also reject soft failures?

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  cPanelMichael

  • June 14, 2016 17:23

  Hello, Exim queries the SPF information to ensure it passes, rather than only checking if the SPF record itself exists. Thank you.

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  saltydk

  • July 11, 2016 04:33

  Thanks.

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