Email & Security
Email DNS Health Check
One-shot scan of MX, SPF, DMARC, MTA-STS, and TLS-RPT for a domain.
SPF Lookup & Parser
Find and parse the SPF record for a domain.
DMARC Lookup & Parser
Fetch and parse the DMARC policy for a domain.
DKIM Record Lookup
Find DKIM records by trying common selectors, or check a specific one.
MX Record Lookup
Resolve MX, forward-resolve each, check PTR, and probe SMTP ports.
IP Blacklist (RBL/DNSBL) Check
Check an IPv4 against major mail blacklists (Spamhaus, SpamCop, Barracuda, etc.).