What records does this SPF DMARC checker look up?

It checks SPF TXT records at the root domain, DMARC TXT records at _dmarc.yourdomain.com, and DKIM TXT records for the selectors you provide.

Why do I need SPF, DKIM, and DMARC?

SPF authorizes sending servers, DKIM signs messages to prove they were not altered, and DMARC tells receivers how to handle mail that fails authentication. Together they improve trust and deliverability.

What DKIM selector should I use?

Your email provider gives you the selector. Common selectors include default, google, s1, s2, k1, mail, and aisend. You can test multiple selectors at once in this tool.

Can I have multiple SPF records?

No. A domain should publish one SPF TXT record. Multiple SPF records can cause SPF permerror results, so combine all sending services into one record.

SPF DMARC Checker

Look up SPF, DKIM, and DMARC DNS records for a domain and see whether email authentication is ready for sending.

Fast & Free Privacy-First No Sign-up Required

Domain

DKIM selectors

Frequently Asked Questions

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