
Description: mmmmail! is an open-source, free email client for Windows designed to be simple and lightweight while still offering robust features. It supports POP3 and IMAP accounts, HTML email rendering, attachments, address books, spell checking, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: TempInbox.com is a free, web-based disposable temporary email service. It allows users to generate a custom, temporary email address to use for a short time to avoid spam and protect their real email identity.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API