Microsoft Exchange
Exchange is a group software developed by Microsoft that is built up email services of corporations, enterprises, and schools. In addition to unified management, set up, access email box, calendar, and contacts, Exchange also provides a variety of collaboration features, such as website mailboxes, public folders, etc., so that you can choose different solutions according to their requirements.
Exchange simplifies the management of business communications and establishes workflows to make teamwork smoothly. Besides, it integrates with Active Directory greatly and works with Outlook well.

Upgrade the latest version to Exchange.

Migrate email from Exchange to Office 365.