
Description: Origami SMTP is an email testing and deliverability tool that allows you to send and analyze email campaigns to verify deliverability before sending large volumes. It provides detailed analytics on emails like opens, clicks, bounces, spam test results, and more.
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