
Description: Mailroom is an email marketing and automation platform for small businesses. It allows users to easily create email campaigns, automate workflows, manage contacts, track analytics, and integrate with other software like CRM systems. Key features include drag-and-drop email builders, A/B testing, and segmentation tools.
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