
Description: Mailpit is an open-source email client focused on privacy and security. It allows users to easily encrypt emails and features built-in tracking protection.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LunaticSMTP is an open-source SMTP server for Windows that allows sending email directly from applications without needing external libraries. It is lightweight, easy to install, and integrates with existing email infrastructure.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API