DKIM selectors are not reliably discoverable in general DNS. For a definitive DKIM check, enter the selector configured by your mail provider.
MAIL SECURITY INTELLIGENCE
Email Security
Inspect SPF, DMARC, DKIM, MX, MTA-STS and TLS-RPT
SPF / DMARC / DKIM
Every result card links to the relevant DNS record for deeper inspection.
How to interpret results
A warning is not always an outage: MTA-STS, TLS-RPT and BIMI are optional controls.
Domain Health
Combine mail results with DNS, TLS and HTTPS headers in one consolidated check.