Exchange is the brand name of Microsoft’s enterprise E-mail messaging server product. It supports standard POP and IMAP accounts as well as Exchange accounts.
Exchange accounts differ in that they synchronize mail, calendars and contacts via one protocol. Other mail systems may support these different services but usually they do so via a collection of protocols such as IMAP, CalDAV and LDAP.
Versions and support
Common versions of Exchange Server in use today . . .
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