
Description: WP Mailster is a WordPress plugin that allows you to create, send, and manage email newsletters directly from your WordPress site. It has a drag-and-drop editor to build emails, subscription forms to capture new subscribers, and analytics to track open and click rates.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Dada Mail is an open source email marketing application that allows you to easily create and send email newsletters, notifications, and automated messages. It has simple subscription management, template customization, and analytics tracking built in.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API