
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: smtp4dev is an open-source SMTP server designed for developers to test email sending applications locally. It provides a simple SMTP server without requiring email account credentials or an internet connection.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API