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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 ...
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]
On 12 March 2021, Microsoft announced the discovery of "a new family of ransomware" being deployed to servers initially infected, encrypting all files, making the server inoperable and demanding payment to reverse the damage. [16] On 22 March 2021, Microsoft announced that in 92% of Exchange servers the exploit has been either patched or mitigated.
Microsoft shipped gateways to PROFS, SNADS (Office Vision), SMTP, X.400 over X.25, Novell's Message Handling System (MHS), MCI Mail, AT&T Mail, and others. Many companies running these gateways quickly replaced them with Microsoft Exchange Server connectors once Microsoft Exchange 4.0 shipped.
Extensible Storage Engine (ESE), also known as JET Blue, is an ISAM (indexed sequential access method) data storage technology from Microsoft. ESE is the core of Microsoft Exchange Server, Active Directory, and Windows Search. It is also used by a number of Windows components including Windows Update client and Help and Support Center. Its ...
MAPI uses functions loosely based on the X.400 XAPIA standard. It includes facilities to access message transports, message stores, and directories.. While Simple MAPI (SMAPI) is a subset of 12 functions which enable developers to add basic messaging functionality, Extended MAPI (EMAPI) allows complete control over the messaging system on the client computer.
Microsoft Exchange Server; Mirapoint Email Appliance [b] Novell GroupWise; Novell NetMail; Open-Xchange; Oracle Beehive; Oracle Communications Messaging Server; Qpopper;
Exchange ActiveSync (commonly known as EAS) is a proprietary protocol by Microsoft, designed for the synchronization of email, contacts, calendar, tasks, and notes from a messaging server to a smartphone or other mobile devices.