Check your email signature (DKIM checker)

Your email signature is a stamp your real email carries. Fakes can't copy it, and inboxes trust email that has it. Type your website's name and we'll look for it. Free, no sign-up.

We read settings anyone on the internet can see. We change nothing. The check covers all your email settings, not just this one.

What it is

Email signature (DKIM). A stamp your real email carries. A fake can't copy it.

Why it matters

Email without a signature is easier to fake and more likely to land in spam. The signature also keeps working when your email is forwarded.

Each email service signs with its own key name, and there is no list of them. We try the names the big services use. If we don't find yours, it may still be there. Send us a test email and we'll see it for sure. Send a free test email.

Problems we look for

• We haven't seen your email signature yet
• Some of your email has no signature
• An email signature you use has gone missing
• An email signature we saw before is gone
• Your test email had no signature
• Your test email's signature didn't check out
• Your test email was signed with someone else's name
• One of your email signatures was switched off
• An old email signature is switched off
• One of your email signatures is broken
• One of your email signatures is too weak
• One of your email signatures points nowhere
• One of your email signatures is still in test mode
• Your Microsoft 365 signature will break soon

Check the others too

Approved senders list (SPF)Protection rule (DMARC)Full email check