
Description: Mailsmith is an email marketing platform that makes it easy for small businesses to create, send, and track email newsletters and campaigns. Its drag-and-drop editor simplifies newsletter design, segmentation allows for targeting specific groups of contacts, and detailed analytics provide insight into email performance.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: K-9 Mail is an open source email client for Android focused on security and privacy. It supports multiple accounts, search, tagging, notifications and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API