Audit a domain's email authentication & deliverability — SPF · DKIM · DMARC · MTA-STS · DNSSEC
Queries SPF, DMARC, DKIM, MX, MTA-STS, TLS-RPT, BIMI and DNSSEC over DNS-over-HTTPS. DKIM selectors can't be listed via DNS — enter yours, or common ones are probed. Nothing is stored.