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Comments for dmarc.org

Global Mailbox Providers Deploying DMARC to Protect Users – dmarc.org How Can I Tell Who is Using DMARC? – dmarc.org Leading Email Senders and Providers to Combat Email Phishing through DMARC.org – dmarc.org History – dmarc.org
Deployment Tools – dmarc.org
Adding DMARC · 2015-04-01 · via Comments for dmarc.org

DMARC Record Creation

DNS Record Lookup and Parsing

Message Validation

Send a message to the following services, where it will be evaluated according to several authentication systems. For message reflectors, send an email message from the domain you wish to check, and a report will be sent back.

  • AboutMy.email, a free service focused on compliance with Google/Yahoo commercial sender policies
  • Message reflector: autoreply@dmarctest.org at dmarctest.org (back in service, March 2025)
  • Message reflector: check-auth@verifier.port25.com by Port25 (instructions – DK, DKIM, Sender-ID, SPF) (out of order)
  • Message reflector: checkmyauth@auth.returnpath.net by Return Path (DK, DKIM, DMARC, Sender-ID, SPF) (out of order)
  • Message reflector: mailtest@unlocktheinbox.com by Unlock The Inbox (DK, DKIM, DMARC, Sender-ID, SPF) (out of order)
  • DMARC, DKIM and SPF Test System at NIST (offline)
  • Red Sift’s Investigate service shows DKIM, DMARC, and SPF results
  • The Validator (of DKIM, DMARC and SPF – registration required) by Message Systems (offline)

Report Parsing and Display