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Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems. The first version was called Exchange Server 4.0, to position it as the successor to the related Microsoft Mail 3.5. Exchange initially used the X.400 directory service but switched to Active ...
Earlier versions – Windows Small Business Server (SBS) – had their own types of CAL, and included the user CALs for Windows Server, Exchange Server, and eventually SQL Server. The SBS CALs cost more than the Windows Server CALs, but less than the sum of separate access licenses for the two or three servers.
The first release of Microsoft Exchange Server was version 4.0 in April 1996, when it was sold as an upgrade to Microsoft Mail 3.5. Before that, Microsoft Mail v2.0 (written by Microsoft) was replaced in 1991 by "Microsoft Mail for PC Networks v2.1", [1] based on Network Courier from its acquisition of Consumers Software. [2]
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Yes indicates that the office suite has been officially released in a fully functional, stable version. Dropped indicates that while the office suite works, new versions are no longer being released for the indicated OS; the number in parentheses is the last known stable version which was officially released for that OS.
Windows Server 2019 is the thirteenth major version of the Windows NT operating system produced by Microsoft to be released under the Windows Server brand name. It is the second version of the server operating system based on the Windows 10 platform, after Windows Server 2016 .
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The comparison of mail servers covers mail transfer agents (MTAs), mail delivery agents, and other computer software that provide e-mail services. Unix -based mail servers are built using a number of components because a Unix-style environment is, by default, a toolbox [ 1 ] operating system.