Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Mailmeteor - Send hundreds of personalized emails with Gmail.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
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.
Interseller - Interseller helps find contact information, reach out to them with email automation and syncs it all into your database.