
Description: Jackmail is a WordPress plugin that allows you to create and send newsletters directly from your WordPress site. It has a drag-and-drop email builder, templates, and integrates with services like MailChimp.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Sendy is an email marketing software built for marketers to send newsletters, automated emails and build email lists. It's self-hosted, affordable and easy to set up for small businesses to manage email campaigns.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API