spam protection setup guide

Is your domain really protected?

Enter your domain to run a live DMARC check and see how easy it for others to spoof your domain.

No sign-up required. Safe to try on any domain.

December 14, 2024

Setup FastMail SPF, DKIM, DMARC, MX Records for Domain Authentication

SPF (Sender Policy Framework) helps prevent email spoofing by allowing domain owners to specify which mail servers are authorized to send email on behalf of their domain.

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Bulletproof emails with DMARC

Check domain and follow the instructions to nail down your DMARC configuration.
No expert knowledge needed!