Microsoft Exchange Server - Wikipedia, the free encyclopedia Page 1 of 15 Microsoft Exchange Server From Wikipedia, the free encyclopedia Microsoft Exchange Server is Microsoft Exchange Server the server side of a client–server, collaborative application product Developer(s) Microsoft Corporation developed by Microsoft. It is part of the Microsoft Servers line of Initial release April 11, 1993 server products and is used by Stable release Microsoft Exchange Server 2010 SP2 enterprises using Microsoft [1] infrastructure products. / December 4, 2011 Exchange's major features consist Development status Active of electronic mail, calendaring, contacts and tasks; that work with Programming language used C and C++ Microsoft Outlook on PC and Operating system Microsoft Windows Mac, wireless synchronization of email, calendar, contacts with Platform x86-64 (64-bit) major mobile devices and Translation available Multilingual browser-based access to information; and support for data Type Collaborative software storage. License Proprietary (MS-EULA) Website www.microsoft.com/exchange Contents (http://www.microsoft.com/exchange) ■ 1 History ■ 1.1 Exchange 1.0 ■ 1.2 Exchange Server 4.0 ■ 1.3 Exchange Server 5.0 ■ 1.3.1 Exchange Server 5.5 ■ 1.4 Exchange 2000 Server ■ 1.5 Exchange Server 2003 ■ 1.5.1 Editions ■ 1.6 Exchange Server 2007 ■ 1.6.1 New features ■ 1.7 Exchange Server 2010 ■ 2 Clustering and high availability ■ 3 Licensing ■ 4 Exchange Hosting ■ 5 Exchange Online ■ 5.1 History ■ 6 Clients http://en.wikipedia.org/wiki/Microsoft_Exchange_Server 7/27/2012 Microsoft Exchange Server - Wikipedia, the free encyclopedia Page 2 of 15 ■ 6.1 ActiveSync ■ 7 See also ■ 8 References ■ 9 Further reading ■ 10 External links History Planning the migration from Microsoft's internal "legacy XENIX -based messaging system" to the Exchange Server environment began in April 1993, [2] and the process was completed in the late 1996 when the last XENIX server on the MS corporate backbone had been removed. [3] Exchange 1.0 Microsoft Exchange 1.0 Microsoft 4.00.835.1374 (version 5.0) / October 14, 1996 Microsoft Windows mail client Proprietary EULA Exchange update for Windows 95 (http://microsoft.com/windows95/downloads/contents/WURecommended/S_WUCommunications/W95ExchUpdate) Windows Messaging, initially called Microsoft Exchange, is an e-mail client that was included with Windows 95 (beginning with OSR2), Windows 98, and Windows NT 4.0. (In Windows 98, it is not installed by default, but available as a separate program in the setup CD.) Microsoft Exchange gained wider usage with the release of Windows 95, as this was the only e-mail client that came bundled with it. Exchange was included throughout later releases of Windows up until the initial release of Windows 98, which by then also included Outlook Express 4.0. ■ The original version lacked support of Internet mail (SMTP and POP3 ). They are only available with the separate Microsoft Plus! pack. ■ HTML e -mail was shown in such a way that the message contained an *.ATT or *.htm attachment, which had to be saved and then viewed in a browser, as MS Exchange did not have support for HTML-formatted messages. Similarly, e-mail that did not use traditional message formatting was delivered in the form of text attachments with the *.ATT extension, which could be opened through Notepad. These files were in turn saved in the active Temp directory and some sensitive e-mail could therefore have been made available for other users to see. ■ International characters were unsupported. Some e -mail that was sent with a non -ASCII or non -7/8-bit character set, was shown in the form of text attachments, which had to be saved and then read in a web browser, with the browser's text encoding set for a specified code page. ■ Microsoft Fax, also called Microsoft at Work Fax (AWF), was the fax component to provide Send-and-Receive Fax capability; sent and received faxes were stored in the same .pst file as other messages, a first attempt at unified messaging by Microsoft. It also provided the ability to act as a fax server,[4] a capacity not available in later versions of Windows until Windows Vista . http://en.wikipedia.org/wiki/Microsoft_Exchange_Server 7/27/2012 Microsoft Exchange Server - Wikipedia, the free encyclopedia Page 3 of 15 In 1996, Microsoft Exchange was renamed to Windows Messaging, because of Microsoft's release of another Exchange product which was meant for servers. Windows Messaging had two branches of successors: ■ In software bundled with Windows itself, these were Internet Mail and News in Windows 95 (and bundled with Internet Explorer 3), which was succeeded by Outlook Express 4.0 in Windows 98 (bundled with Internet Explorer 4.0 in Windows 95) and throughout newer Windows systems. These did not use the .pst file type. [5] ■ Microsoft Outlook became the professional-grade and more direct successor of MS Exchange Client, which still uses the .pst file type. Because Microsoft Outlook used the same basic Windows Messaging profile, account, and e-mail settings (MAPI), Microsoft Exchange users not familiar with it may have thought that Outlook duplicated those settings and made copies of all their mail while they were trying out the new Microsoft Outlook 97. Thus, some MS Exchange users could have unknowingly deleted all their e-mail, thinking it was a copy, as Microsoft Outlook did not have any front-end feature to notify users that it was actually using the same MS Exchange / Windows Messaging account. Exchange Server 4.0 Microsoft began a preliminary planning of the Exchange 4.0 migration in April 1993. [3] In January 1995, 500 users were running on Exchange Beta 1, 5,000+ users running on Exchange Beta 2A in September 1995, and finally all 32,000 Microsoft mailboxes successfully migrated to Exchange and Microsoft Exchange shipped in April 1996. [6] Microsoft IT Group actually migrated all Microsoft employees to the Exchange platform before the product had the official Release status. [3] Exchange Server 4.0 , released on April, 1996, [7] was the original version of Exchange Server sold to the public, positioned as an upgrade to Microsoft Mail 3.5. The original version of Microsoft Mail (written by Microsoft) had been replaced, several weeks after Lotus acquired cc:Mail, by a package called Network Courier , acquired during the purchase of Consumer Software Inc. in April 1991. [8] Exchange Server was however an entirely new X.400-based client–server mail system with a single database store that also supported X.500 directory services. The directory used by Exchange Server eventually became Microsoft's Active Directory service, an LDAP-compliant directory server. Active Directory was integrated into Windows 2000 as the foundation of Windows Server domains . Exchange Server 5.0 On May 23, 1997, Exchange Server 5.0 was released, which introduced the new Exchange Administrator console, as well as opening up "integrated" access to SMTP-based networks for the first time. Unlike Microsoft Mail (which required a standalone SMTP relay), Exchange Server 5.0 could, with the help of an add-in called the Internet Mail Connector, communicate directly with servers using SMTP. Version 5.0 also introduced a new Web-based e-mail interface called Exchange Web Access, which was rebranded as Outlook Web Access in a later Service pack. Along with Exchange Server version 5.0, Microsoft released version 8.01 of Microsoft Outlook, version 5.0 of the Microsoft Exchange Client and version 7.5 of Microsoft Schedule+ to support the new features in the new version of Exchange Server. Exchange Server 5.5 Introduced November 1997, was sold in two editions, Standard and Enterprise. They differ in database store size, mail transport connectors and clustering capabilities. The Standard Edition had the same 16 GB database size limitation as earlier versions of Exchange Server, while the Enterprise Edition had an increased limit of 16 TB (although Microsoft's best practices documentation recommends that the message store not exceed 100 GB). The Standard Edition includes the Site http://en.wikipedia.org/wiki/Microsoft_Exchange_Server 7/27/2012 Microsoft Exchange Server - Wikipedia, the free encyclopedia Page 4 of 15 Connector, MS Mail Connector, Internet Mail Service (previously "Internet Mail Connector"), and Internet News Service (previously "Internet News Connector"), as well as software to interoperate with cc:Mail, Lotus Notes and Novell GroupWise. The Enterprise Edition adds an X.400 connector, and interoperability software with SNADS and PROFS. The Enterprise Edition also introduced two node clustering capability. Exchange Server 5.5 introduced a number of other new features including a new version of Outlook Web Access with Calendar support, support for IMAP4 and LDAP v3 clients and the Deleted Item Recovery feature. Exchange Server 5.5 was the last version of Exchange Server to have separate directory, SMTP and NNTP services. There was no new version of Exchange Client and Schedule+ for version 5.5, instead version 8.03 of Microsoft Outlook was released to support the new features of Exchange Server 5.5. Exchange 2000 Server Exchange 2000 Server (v6.0, code name Platinum), released on November 29, 2000, overcame many of the limitations of its predecessors. For example, it raised the maximum sizes of databases and increased the number of servers in a cluster from two to four. However, many customers were deterred from upgrading by the requirement for a full Microsoft Active Directory infrastructure to be in place, as unlike Exchange Server 5.5, Exchange 2000 Server had no built-in Directory Service, and had a dependency upon Active Directory. The migration process from Exchange Server 5.5 did not have any in-place upgrade path, and necessitated having the two systems online at the same time, with user-to-mailbox mapping and a temporary translation process between the two directories.