
Description: Deferred Sender is an email delivery tool that allows you to schedule sending of emails and newsletters at a later, more optimal time. It helps improve email deliverability by preventing emails from getting stuck in spam filters or overwhelming recipients' inboxes.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: FollowUpThen is an email productivity software that allows users to schedule emails in advance and send automated follow up emails. It helps manage email communications by planning and organizing messages.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API