Find every gap in your email authentication.

Six protocols. Read directly from your DNS. Thirty seconds.

Free scan. No signup. Six protocols.

What we check.

Six protocols. Every one read directly from public DNS. No self-reports. No estimates.

D

DMARC

RFC 7489

Policy, strength, alignment.

S

SPF

RFC 7208

Record, lookups, qualifiers.

D

DKIM

RFC 6376

Selectors, key strength, publication.

M

MTA-STS

RFC 8461

Policy file, mode, MX authorization.

T

TLS-RPT

RFC 8460

TLS failure reporting.

B

BIMI

BIMI Draft / RFC 9495 (VMC)

Logo, VMC certificate.

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