Free Tool

Generate a valid SPF record in minutes

Pick the services that send mail for your domain, choose a policy, and copy the finished record straight into your DNS — no syntax to memorize.

SPF tells other mail servers which sources are allowed to send email as your domain. Add one row below for each service or server that sends mail for you — not sure what a type means? Each row explains itself once you pick it.

Who sends mail for your domain?

Quick-add a known provider

Free tool, provided without warranty or professional liability on our part — by using it, you agree we accept no liability for the result. Need a guarantee? Hire a qualified professional instead. Details in the Free Tools section of our Terms of Service.

How to add this to your domain

  1. 1

    Copy the SPF record above.

  2. 2

    Log in to your domain's DNS provider (your registrar or DNS host).

  3. 3

    Create a new TXT record. The host/name is usually "@" or your bare domain — it varies by provider.

  4. 4

    Paste the copied record as the value, and save.

  5. 5

    Give it anywhere from a few minutes to an hour to propagate, then verify it.

If your domain already has an SPF record, don't add a second one — a domain can only have one. Merge the mechanisms above into your existing record instead.

Verify your SPF, DKIM, and DMARC setup with our free checker →

SPF only stops spoofing — not a hijacked inbox

Even a perfect SPF, DKIM, and DMARC setup can't protect an attachment sent from a real, compromised account. Adlerwacht adds a passkey check on top, so the file itself stays protected either way.

Try Adlerwacht free for 30 days