Regex not filtering correctly

Answered

a marx

• May 16, 2026 16:45

I have the following regex global filter which tests fine regex101 and also in the filter test section on cPanel... but mail is being filtered and not delivered and is seen as filtered on "Track Delivery"... what gives??

^.*\.(?!(com|net|org|int|edu|gov|mil|biz|coop|us)$).*$

 

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  a marx

  • May 17, 2026 23:00
  • Edited

  Just showing the .pro domain made it through the mail filter.. shouldn't have happened

  .. and the test showing the regex is working.

  

  

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  a marx

  • May 20, 2026 19:50
  • Edited

  Still banging on this issue as everything being shown to me is showing that the mail should be delivered... but it's being filtered, why?

  Here's another attempt that also has failed... 

  \.(?!com$|net$|org$|int$|edu$|gov$|mil$|biz$|coop$|us$)[A-Za-z]{2,}$

  

  

  

   

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• 

  DennisMidjord

  • May 21, 2026 07:30

  View the source of the email and check the value of the "From" header. I think your issue is that your regex is too strict 

  You'll most likely see something like this: 

  From: WordPress <wordpress@domain.com>

  Your regex does not match the above header.

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  a marx

  • May 23, 2026 12:43

  I believe I have a working version, posted in case anyone else is interested... thanks for the input.
  
  (From):.*@[a-zA-Z0-9.-]+\.(?!(com|net|org|int|edu|gov|mil|biz|coop|us)\b)[a-z]{2,}\b

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