Testers and Implementers can send a signed mail to an advertised e-mail address(a "Reflector") and receive the verification results. To test against DKIM.org's reflector, you will need to send your mail to the following address:

dkim-test (at) testing (dot) dkim (dot) org

This reflector is currently offline due to abuse.

There are various other Reflectors available as well (please send mail if you want to add yours, or update what's here):

Currently verifying with RFC4871 (don't know about RFC4870):
  • Port 25: check-auth (at) verifier (dot) port25 (dot) com

  • Currently verifying both RFC4871 (and RFC4870):
  • Alt-N: dkim-test (at) altn (dot) com

  • Currently verifying both RFC4871 (and RFC4870):
  • Sendmail: sa-test (at) sendmail (dot) net

  • Currently verifying both draft allman-00 and allman-01 (better?):
  • Elandsys: autorespond+dkim (at) dk (dot) elandsys (dot) com

  • Currently verifying both RFC4871 (and RFC4870) :
  • Blackops: dktest (at) blackops (dot) org












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