An Envelope for Email

Letters sealed with wax like in this painting by Cornelis Norbertus Gysbrechts are quite rare today.

But since the rise of the internet, even paper letters have lost their dominance in written communication. Today, we use email. And the vast majority of them are sent without an "envelope", like a modern post card.

There are several good reasons to use private communication. The encryption technology is also now available for everybody. Probably the biggest reason why email encryption hasn't gained more ground is a simple matter of convenience. Mailvelope wants to make a contribution here and offers a solution for users of webmail.

Open Source

Mailvelope is an open source project hosted on GitHub (see list of contributors). The developement process is completely transparent, we constantly conduct security audits and publish reports whenever possible.

Mailvelope is based on the work of the following open source projects which should be acknowledged:

The Story

  • Development of Mailvelope starts beginning of 2012 by Thomas Oberndörfer.
  • In August 2012 a first version is available in the Chrome Web Store, the source code is published under AGPL3 licence on GitHub.
  • Since September 2013 funding from Open Technology Fund, first security audits.
  • Since August 2014 cooperation with 1und1, development of an API for direct integration of Mailvelope in mail clients.
  • October 2014: Mailvelope supports Firefox.
  • January 2015: founding of Mailvelope GmbH, a company that provides services and support for the Mailvelope browser extension.
  • March 2015: Deutsche Telekom and United Internet announce PGP encryption based on Mailvelope for the De-Mail service.
  • August 2015: 1und1 launches PGP feature for the brands GMX and WEB.DE.

Terms and Conditions

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License version 3 as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.