Email & Deliverability · SPF / DKIM / DMARC

DNS / MX / SPF / DMARC Inspector

Resolve DNS, mail-routing and email-authentication posture for a domain, including deep SPF/DMARC analysis.

visibility
Public
risk
Low risk
activelow riskmvp
01overview

What this tool does.

Performs live DNS lookups for A, AAAA, MX, NS, TXT and CAA records, then analyzes SPF authorization dependencies and current DMARC policy semantics.

The SPF graph is diagnostic and bounded; DMARC parsing follows RFC 9989 for the queried _dmarc record and does not claim to simulate a receiver's complete message-evaluation path.

02interactive

Run this tool.

Enter a target to view results from this tool. Review its scope and access requirements before running a search.

run
logging · lightcooldown · 5s

Your input is processed by OSINT.dev and, where needed, sent to the provider used by this tool.

Domain or URL. We normalize it to the hostname automatically (e.g. https://mail.example.com/path → mail.example.com).

also inDNS Records/dns-records
tagsIntermediatePassive
03documentation

Documentation · 2 documents.

editorial

Related articles.