365Fanatic / Tools / Email security check

How secure is your email?

Check your domain's SPF, DKIM, DMARC, DNSSEC, DANE and MTA-STS. For every finding you see what it means and get the record or command to fix it, including for Microsoft 365 and Azure Communication Services.

Specify a DKIM selector (optional)

We only read public DNS data, via Cloudflare DNS. No mail is sent. 365Fanatic stores no domain names or other details of your check; we only count how often the check is used.

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