Free tool · runs in your browser

SPF Record Generator

Build an SPF TXT record from your sending IPs and services, then check it before you publish.

How it works

What it does

Add the IP ranges and include domains your mail is sent from, choose how receivers should treat everything else, and copy the record. IP ranges are validated and duplicates are removed.

Limits

What it cannot tell you

  • It generates text only. Publishing it in your DNS is up to you, and it does not confirm the record is live.
  • A domain can have only one SPF record; merge, do not add a second one.
  • SPF allows 10 DNS-lookup terms (a, mx, include and others). The generator warns when you exceed that for the terms it adds.
  • Runs in your browser; nothing you enter is sent anywhere.
FAQ

Common questions