email encryption Archives

LibrePGP – alternative OpenPGP encryption specification

LibrePGP is an alternative OpenPGP specification focused on compatibility, long-term use, updated algorithms and existing implementations.

KMail is KDE’s email client, offering OpenPGP and S/MIME encryption, multiple accounts, powerful filtering and Kontact integration.

Claws Mail is a lightweight GTK email and news client with OpenPGP and S/MIME encryption, message filtering, OAuth2 and extensible plugins.

Evolution combines email, calendars, contacts and tasks, with OpenPGP and S/MIME encryption, Exchange integration and message filtering.

GnuPG implements OpenPGP for encryption, signing and key management, with smartcard support, modern authenticated encryption and automation

Mailvelope adds OpenPGP encryption to webmail, with browser-based key management, optional GnuPG integration, composing and key backup.

Enigmail was a Thunderbird OpenPGP extension providing encryption, digital signatures and GnuPG integration before native OpenPGP support.

Mymail-Crypt for Gmail OpenPGP browser extension that integrates tightly with Gmail and does encryption/decryption via JavaScript.

OpenPGP defines interoperable formats for encrypted messages, digital signatures and public-key management, currently specified by RFC 9580.

Sylpheed is a lightweight GTK email client with OpenPGP encryption, multiple accounts, message filtering, Usenet news and MH storage.