TestRail - TestRail provides comprehensive test case management for software testing. Organize your testing, boost productivity, get real-time insights, and track progress toward milestones. Integrates with leading issue tracking and test automation tools.

Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Micro Focus ALM - Learn how Micro Focus’ Application Lifecycle Management (ALM) software tools provide the agility, visibility, and collaboration solutions you need to optimize app development and testing, foster innovation, and improve the user experience.

Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.

Helix ALM - Helix ALM is the single, integrated application that lets you centralize and manage requirements, test cases, issues, and other development artifacts and their relationships.

Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES