amavis-dkim: How to discard mail with no or invalid signature

Gerhard Rappenecker G.Rappenecker at
Tue Jan 12 15:03:21 CET 2016

Hi all,

I'd like to discard, reject or quarantine mails from a specific domain, but only if they have no or no valid DKIM signature.

I suspect that's a trivial task but I'm a beginner working with postfix/amavis and cannot find any helpful documentation about this.

My environment:
postfix 2.11.6
  $enable_dkim_verification = 1
  $enable_dkim_signing = 1;

DKIM signing and verification work fine, but the mail is beeing delivered independent of the DKIM authentication-result

Can anyone help me?


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