Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Microsoft Outlook - Organize your world. Outlookโs email and calendar tools help you communicate, stay on top of what matters, and get things done.
Clever - syncing between education applications for K-12 schools