
Description: MailSpons is an email marketing and automation platform that allows businesses to create, send, and track email campaigns. It has drag-and-drop editors, A/B testing, automation workflows, analytics, and integrations with CRMs and e-commerce platforms.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: MailCatcher is a simple, open source email testing tool for developers. It runs a local SMTP server to catch emails sent from web apps during development, allowing developers to preview them in a web interface instead of sending them externally.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API