DMARC checker

DMARC tells Gmail, Outlook and the rest what to do with email that pretends to be from your domain. Enter a domain to look up its record, or paste one, and see what it does in plain English. Free, and nothing is stored.

Or paste a record

What a good DMARC record looks like

For most small businesses: v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain. Start with p=none for two weeks if you're not sure every service that sends your email is in your SPF record, then tighten it. Our email spoofing guide explains SPF, DKIM and DMARC together.