Look up, trace, build, and investigate your email infrastructure.
Six authentication signals. One clear view.
A, AAAA, MX, TXT, CNAME, NS, SOA, PTR and CAA.
Follow includes and uncover lookup pressure.
Catch common SPF and DMARC mistakes.
DMARC, SPF, BIMI, MTA-STS and TLS-RPT.
Generate a 2048-bit key pair in your browser.
Inspect the published HTTPS mail policy.
Read authentication claims and delivery hops.
Generate nearby names worth investigating.
Spot suspicious URL structure without opening it.
Inspect SVG structure before certification.