
Description: Claws Mail is an open-source email client and news client for Linux and other Unix-like operating systems. It supports features like SSL/TLS encryption, spam filtering, multi-account management, and custom themes.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: NeoMutt is an open-source email client for Linux and Unix-like systems that focuses on speed and flexibility. It supports features like threading, tagging, encryption, and advanced email searching and filtering.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API