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I have a a reject rule inside body_checks parameter written like this:

/(\d{3,4},\d{2} EUR)/ REJECT Body Spam Rule 934

This regexp paramater should be ok, at least according to some testing pages where you can test regexp, for example on this page. So, I test it against this sentence

Sie haben eine Zahlung über 156,36 EUR

But when I test with real e-mail containing above sentences, the email is not rejected.

Postfix has enabled header and body checks. Other non regexp rules works fine. I have also reloaded postfix service after adding filter to body_checks. Any idea why?

  • 1
    Can you post applicable postfix configuration files? – user87664 Nov 26 '14 at 21:58
  • Any idea how to copy the whole content of .cf file threw ssh? :P – gappani Nov 26 '14 at 22:11
  • You need post all lines in your body_checks file. Maybe some regexp rules overriding this regexp. Try to place the regexp above the others. – masegaloeh Nov 27 '14 at 5:10
  • All lines are inside body_checks file. main.cf references to body checks files threw header_checks = regexp:/etc/postfix/body_checks. I also moved rule above all rules, but the problem remains. – gappani Nov 27 '14 at 10:00
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    Is this a test email you created or a real spam email from a spammer? If it's a spammer email, it could easily contain different characters such as a tab instead of a space or a non-printable character or alternate unicode characters such as the fullwidth digits (U+FF1x). – Ladadadada Nov 27 '14 at 11:22
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Looks like postfix doesn't support\d in regex. Replace it with [0-9] to make it work.

/([0-9]{3,4},[0-9]{2} EUR)/ REJECT Body Spam Rule 934

Postmap result

~$ postmap -bmq - regexp:/etc/postfix/myregex  < sample-body
Sie haben eine Zahlung über 156,36 EUR  REJECT Body Spam Rule 93156,36 EUR
  • thank you, thank you 100 times :). You made my day. It works now!!! – gappani Nov 28 '14 at 11:53

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