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SPF, DKIM and DMARC record checker

Check a domain's SPF, DKIM and DMARC records for mistakes, with the 10-lookup limit and what to fix.

  • Free
  • No sign-up
  • Works on any device

About SPF, DKIM and DMARC record checker

Check a domain's SPF, DKIM and DMARC records for mistakes. SPF is limited to 10 DNS lookups, and exceeding it makes the record fail silently. The report explains each problem and what to fix. Correct authentication keeps your messages out of spam and blocks spoofing.

How to use SPF, DKIM and DMARC record checker

  1. Type your domain name.
  2. Add a DKIM selector if you know it.
  3. Read the SPF, DKIM and DMARC results and follow the suggested fixes.

Why use this tool?

Also known as

Frequently asked questions

Why does my SPF record fail with too many lookups?

SPF permits at most 10 DNS lookups, and each include, a, mx or redirect counts. Remove unused includes or flatten the record to get under the limit.

What is a DKIM selector?

A selector is a label that tells receivers where to find your public key, such as selector1 or google. Your email provider usually tells you which one it uses.

Do SPF, DKIM and DMARC all need to be set?

They work together. SPF and DKIM check the sender, and DMARC tells receivers what to do when they fail. Having all three gives mail the best chance of reaching the inbox.

Is SPF, DKIM and DMARC record checker free?

Yes. SPF, DKIM and DMARC record checker on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

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