Newly listed sites

Protected email delivery with recipient verification and pre-send checks

Gmail encryption with organization policy and access controls

Encrypted correspondence alongside existing Gmail or Outlook accounts

Encrypted email and intake forms for professional practices

Email-client tracker controls with PGP and S/MIME options

OpenPGP encryption and key management on iPhone and iPad

Lasting aliases and session-access temporary mailboxes

Hosted mail with aliases and a key-encrypted webmail copy

OpenPGP signing and encryption inside Apple Mail

OpenPGP encryption in existing webmail accounts

PGP encryption integrated into Gmail

A terminal mail client with GPG signing and encryption

A terminal mail interface with PGP/MIME and a Notmuch index

Terminal email with PGP and several mailbox backends

KDE mail with OpenPGP, S/MIME and contact-based crypto preferences

GNOME mail with documented GPG and S/MIME workflows

A plugin-based mail client with PGP and S/MIME support

A Mutt-derived terminal client with documented encryption configuration

A terminal mail client with PGP/MIME and extensive configuration

A keyboard-focused Mac mail client with OpenPGP and S/MIME

A mail client with integrated PGP and S/MIME key workflows

Android mail with explicit image, link and encryption controls

A maintained Thunderbird fork with encrypted-message search

An open-source email client funded by user donations