InLook is a small, fast viewer for .eml email files (the standard RFC 822
/ MIME format used by Outlook, Thunderbird, and most other mail clients
when saving a single message to disk). It renders headers, body (HTML or
plain text), and attachments, with embedded HTML sandboxed under a strict
Content Security Policy — no remote loads, no tracking pixels. Follows
the system light/dark theme, registers as the default .eml handler, and
never touches the network. Free Software from Struis ICT.
Host your business email on a secure, encrypted, privacy-guaranteed, and ad-free email service, and add a professional touch to every email that goes out.