MAIL SECURITY DIAGNOSTICS

Check Mail Health

Inspect enterprise email DNS, identity and transport security in one technical report—from MX and SPF to DKIM, DMARC and SMTP protection.

Enter an email domain

Example: example.com or admin@example.com

Human verification and responsible use

Every request is rate-limited and logged. Private targets and bulk scanning are blocked.

What does Email Health inspect?

Email authentication

SPF, DKIM and DMARC presence and policy quality are checked to reduce domain spoofing and delivery failures.

Mail routing and DNS

MX priority, authoritative name servers, CAA and DNSSEC delegation are evaluated for common configuration risks.

Transport security

MTA-STS, TLS-RPT and SMTP service reachability are checked to assess protected message transport.

Why SPF, DKIM and DMARC matter

A working mail server does not guarantee a trustworthy email domain. Duplicate SPF records, missing DKIM signatures or a weak DMARC policy can send legitimate messages to spam and allow attackers to impersonate the domain. Use this report as a first diagnostic step and validate its findings against your mail-flow logs and provider configuration.

For design, migration and operations, review our enterprise mail server services and managed network support.