
Description: MailNull is a free disposable/temporary email service that allows users to create anonymous email addresses to use for signups and receiving emails without revealing their real email address. The email addresses self-destruct after a short period.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Firefox Relay is a free service from Mozilla that provides users with alias email addresses to protect their privacy and reduce spam. Users can generate unlimited email aliases that forward messages to their real inbox.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API