Enigmail is a free and open source security extension for Postbox and Interlink Mail & News. It allows you to write and receive email messages digitally signed and/or encrypted with the OpenPGP standard, in a simple and easy way. To download Enigmail, please use the "Download" menu on top of this page.

The Enigmail Handbook is a comprehensive document integrating detailed installation and usage information, technical references, FAQs, troubleshooting, and general tips and tricks.

The current edition is aimed at Enigmail version 3.0 but also contains guidance on previous versions.



Getting Started with Enigmail

What is Enigmail

Introduction to Cryptography, OpenPGP, and Enigmail


Setting up Enigmail

Installation of Enigmail

Quick start


Using Enigmail

Key Management

Signature and Encryption





Additional Resources

Advanced Operations

Notes, Tips & Tricks

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