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Private beta · email that starts from your product, sent from your inboxes

SPF record generator

SPF tells receiving mail servers which services may send as your domain. You get one SPF record per domain, so every sender goes in the same one.

Who sends mail as this domain?

Tick every service that sends from it — your mailbox provider and any app that emails customers.

Your own hosts
What should receivers do with other senders?

Your TXT record

Type
TXT
Host
@ (your domain)
v=spf1 include:_spf.google.com ~all
  • Each include can pull in further lookups of its own. Check the finished record with a live SPF checker.

Things that trip people up

  • Only one SPF record. Two TXT records starting with v=spf1 make both invalid. Merge them.
  • Ten lookups, total. Every include, a and mx costs one, and includes can contain more. Go over and SPF fails for all your mail.
  • SPF alone doesn’t protect the From address. Pair it with DKIM and a DMARC record.