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Free email security checker

Find out whether scammers can send email that looks like it came from your business. Enter your domain to check its SPF, DMARC and mail server records instantly.

SPF

Lists which servers are allowed to send email for your domain. Without it, anyone can send as you.

DMARC

Tells receiving servers what to do with email that fails checks: allow it, send it to spam, or reject it.

MX

Shows where your domain’s email is delivered, such as Microsoft 365 or Google Workspace.

Found a problem? We can fix it, usually in under an hour.

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