ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Automate.io - Connect your cloud software and automate work.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Make.com - Tool for workflow automation (Former Integromat)
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.