Free tool
Email security check
Find out in seconds whether criminals can send email as your domain — and why your messages might be landing in spam.
Only public DNS records are checked. Nothing is stored.
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Results for
Get this fixedWhat we check
Six records that decide where your email lands
- SPF
- Lists the servers allowed to send email for your domain. Too many lookups and it silently breaks.
- DKIM
- A cryptographic signature that proves a message really came from you and wasn’t altered.
- DMARC
- Tells receivers what to do when SPF or DKIM fail — and sends you reports on who is using your domain.
- MTA-STS
- Forces other mail servers to use encrypted connections when delivering email to you.
- TLS-RPT
- Sends you reports when encrypted delivery to your domain fails, so problems don’t go unnoticed.
- BIMI
- Shows your verified logo next to your emails in supporting inboxes like Gmail and Apple Mail.
Want it fixed properly?
We’ll take your domain from exposed to fully enforced — SPF, DKIM, DMARC at p=reject, MTA-STS and reporting — without breaking a single legitimate email.