Free Tool
Email Security Checker
See how well a domain is protected against email spoofing — SPF, DKIM, and DMARC, graded in plain English.
Embed this tool on your website
Free to use on your own site — copy one snippet and it just works.
FAQ
About email security
A quick primer on SPF, DKIM, and DMARC — and how we can help.
We set up email properly.
SPF, DKIM, and DMARC configured correctly, as part of Google Workspace and Microsoft 365 — so your email is trusted and protected.