MailCheck
Email fingerprinting & analysis service
Analyze any email sender
Send an email to a unique address and get a detailed fingerprint report of the sending server.
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TCP/IP & TLS fingerprint
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SPF / DKIM / DMARC validation
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MTA & mail client detection
◆
DNS leak analysis
Analysis checks
Fast · ~5s
▾
0 of 9 optional checks enabled
Preset:
Fast
Balanced
Full
Custom
⚡ Passive fingerprint + SPF/DKIM/DMARC always run
Estimated report time:
~5s
Get Email Address
Send your email to
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5:00
Waiting for incoming email...
Send any email to the address above. We will analyze TCP/IP fingerprint, TLS handshake, SPF/DKIM/DMARC, DNS queries, and more.
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API Access
Programmatic access to email fingerprinting. Create traces, poll status, and fetch reports via JSON API.
POST
/api/trace
— create a new trace
GET
/api/status/{id}
— poll for results
GET
/api/report/{id}
— fetch JSON report
View full API documentation →