.eml / .msg email header chain analyzer — free browser tool | fatcousin | fatcousin

tools→browse every utility in one place.manifesto→why fatcousin exists — local-first, no uploads.

ready

local

// fatcousin · local process monitor

00:00:00

// session started —

// tool · email-header-chain-analyzer

// origin · —

// user agent · —

// verdict · files processed locally · verify by watching NET events below

▮

NET · no outbound requests · all processing local

this panel shows everything. if something looks wrong, it is wrong. that's the contract.

drop eml or msg · paste headers · received chain · spoofing indicators · IP extraction · export csv · runs locally

[paste headers]

[drop files]

drop .eml or .msg

or click

Select file

.msg uses transport headers only (0x007D) — drop .eml for best results

drop .eml / .msg or paste raw headers