Comparing Subject and Sender

cyber_cynic

• August 15, 2017 23:14

I noticed a lot of my spam has the following header formats: Subject: Some Spam Sender From: SomeSpamSender@spammer.com Is there way to compare headers without piping to a separate script? Essentially I would like to set the following filter: If "From" contains ["Subject" without white spaces] Then Discard message. Any help would be appreciated.

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  cPanelMichael

  • August 16, 2017 15:42

  Hello, This isn't possible with a standard filter rule, but you might be able to get that working using a custom regular expression in the filter. You may want to seek out advice from the Exim users mailing list if you do not receive additional user-feedback on this thread: Exim-users Info Page Thank you.

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  cyber_cynic

  • August 16, 2017 16:26

  Hello, This isn't possible with a standard filter rule, but you might be able to get that working using a custom regular expression in the filter. You may want to seek out advice from the Exim users mailing list if you do not receive additional user-feedback on this thread: Exim-users Info Page Thank you.

  
  I apologise if I was not clear in my post. I am looking for a "regex" for the rhs of the filter. So the first question would be: Is "Subject" a reserved word that can be used in an expression?

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  cPanelMichael

  • August 16, 2017 18:00

  Hello, It doesn't appear as though you can use variables for the operators in that way (e.g. $message_body contains "\\$header_subject"). Exim provides in-depth documentation on filter rules at: 3. Exim filter files You may want to setup a custom filter rule for testing and consult with the Exim user's mailing list to see if anyone has setup something similiar. Thank you.

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