Utility

Email Health Checker

Checks a domain's MX, SPF, DKIM and DMARC records and explains what's misconfigured and why it matters.

Use this tool

We log that you used the tool and basic settings, never what you type or upload. A site administrator may enable a heavily masked sample for selected non-sensitive tools; those samples are deleted after 30 days.

Read-only DNS lookups. Nothing is stored.

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