
Description: MailHog is an email testing tool for developers. It captures outgoing email and displays it in a web interface for testing, without sending the emails externally. Useful for testing email in development environments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SMTP Bucket is an email testing and debugging tool that allows you to capture, view, and analyze outbound email traffic without sending it to recipient inboxes. It provides a fake SMTP server to connect email clients or apps to, logs all email activity, and gives you tools to inspect messages.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API