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Look up mail routing and investigate server DNS

AI-native Markdown notes with encrypted sync for developers

A private, open-source writing app built around searchable notes, pins, and trails.

End-to-end encrypted messaging, voice, video, and file sharing for organizations.

An open-source handwriting notebook with nested folders and encrypted cross-device sync.

Keep encrypted workplace messaging on a self-hosted XMPP server.

Browser-based mail with OpenPGP keys and digital signatures

Small private-mail hosting with standard clients and catch-all addresses

Privacy aliases with optional PGP or S/MIME forwarding

Configurable browser with blocking and encrypted sync

Swiss domain email with administration and protected-message options

Central S/MIME and PGP with an encrypted-PDF fallback

Browse compatible encrypted filesystems inside Android

Terminal email with PGP and several mailbox backends

Encrypted IPv6 overlay with public-key-derived addressing

AI productivity suite with Mail, Docs, Go, Agents, Calendar, and Databases.

OpenPGP mail hosting with aliases and IMAP support

Private hosted mail with subdomain aliases and OpenPGP support

A hosted inbox that can also combine existing mail accounts

GNOME mail with documented GPG and S/MIME workflows

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

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

Keep a working folder and an encrypted folder in sync

A configurable proxy for encrypted DNS protocols