
Description: GPGMail is an open-source email encryption plugin for Thunderbird and Seamonkey. It integrates OpenPGP encryption into the email client, allowing users to easily encrypt, decrypt, sign and verify emails and attachments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ProtonMail Bridge is an email client that connects your ProtonMail encrypted email account to your desktop email client like Outlook or Thunderbird. It allows you to use ProtonMail seamlessly with your preferred email program while maintaining encryption.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API