Free email health check

Is your email landing in spam?

Check your domain in 10 seconds: SPF, DKIM, DMARC, spam blocklists and more, with exactly what to fix. No sign-up needed.

Tells receiving servers which services may send email for your domain.

Signs every email so Gmail and Outlook can prove it really came from you.

Tells receivers what to do with fakes, and has been required by Gmail and Yahoo for bulk senders since 2024.

We only read public DNS records. Nothing is sent to your domain and we never share your email.