Encryption software

Enigmail – simple interface for OpenPGP email security

Enigmail is a seamlessly integrated security add-on for Mozilla Thunderbird, Interlink Mail & News and Postbox. It allows you to use OpenPGP to encrypt and digitally sign your emails and to decrypt and verify messages you receive.

Enigmail uses inter-process communication to execute GnuPG to create OpenPGP signatures, encrypt and decrypt mail, etc.

You can tell Enigmail to automatically encrypt outgoing emails.

Features include:

  • Integrated support for OpenPGP with the Mozilla Thunderbird and Mozilla Seamonkey mail clients.
  • Encrypt/sign mail when sending, decrypt/authenticate received mail.
  • Support for inline-PGP (RFC 4880) and PGP/MIME (RFC 3156).
  • Per-Identity based encryption and signing defaults.
  • Per-Recipient rules for automated key selection, and enabling/disabling encryption and signing.
  • OpenPGP key management user interface.
  • Automatically encrypt or sign attachments for inline PGP messages.
  • Powerful GUI for easy configuration and OpenPGP key management.
  • Detailed user preferences for advanced configuration.
  • Integrated OpenPGP PhotoID viewer.
  • Supports OpenPGP key retrieval via proxy servers.
  • Integrates with GnuPG, version 1.4.x and 2.0.x.
  • Supports Mozilla’s Multiple Identities feature.
  • Supports Autocrypt exchange of cryptographic keys
  • Many Language Packs, (mostly) included in the official releases, and available separately for localization of contributed builds.

Website: www.enigmail.net
Support: Documentation, FAQ, GitLab Code Repository
Developer: Patrick Brunschwig
License: Mozilla Public License (MPL) 2.0


Enigmail is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.

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