Challenge
Ship email encryption without requiring clients to install anything.
Security · 2023
CipherMail
Encrypted mail gateway for firms (PGP / S/MIME)
1 min read · Updated 18 Aug 2026
PGP · S/MIME
Standard
Overview
SMTP/IMAP gateway that adds end-to-end encryption to a firm’s mail: automatic per-contact PGP keys, S/MIME fallback, and hardened TLS envelope. Plaintext internal messages raise a compliance alert.\n\nLaravel + queue worker, public keys stored in an encrypted column, admin key-rotation UI.
Solution
Transparent mail proxy, key directory, and per-domain policy.
Outcome
Encrypted mail by default for equipped correspondents, alert otherwise.
