Mail host · DMARC

DMARC record for Fastmail

How to add a DMARC record when DNS or mail is at Fastmail. Real steps, then a live lookup.

Fastmail hosts mail; DNS is usually elsewhere. They give you a precise set of records to copy.

  1. They suggest a DMARC record in the same setup screen. Start at p=none if you also send from other tools.

Official docs: Fastmail. Other records for this provider: SPF · DKIM · DMARC

Check it live

Check the DMARC record

Look up the live DNS after you save. This tool does not spend credits.

v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com

Publish as TXT at _dmarc.yourdomain.com. Start at p=none until SPF and DKIM pass on real mail.

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