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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.
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] Exchange Server was an entirely new X.400 - based client–server ...
Outlook on the web (formerly Outlook Web App and Outlook Web Access[2]) is a personal information manager web app from Microsoft. It is a web-based version of Microsoft Outlook, and is included in Exchange Server and Exchange Online (a component of Microsoft 365.) [3][4][5]
The branding Office 365 was introduced in 2010 to refer to a subscription-based software as a service platform for the corporate market, including hosted services such as Exchange, SharePoint, and Lync Server, and Office on the web. Some plans also included licenses for the Microsoft Office 2010 software. Upon the release of Office 2013, Microsoft began to promote the service as the primary ...
Other than the paid software on Windows and Mac desktops that this article talks about, the Outlook name also covers several other current software: Outlook on the web, formerly Outlook Web App, a web version of Microsoft Outlook, included in Microsoft 365, Exchange Server, and Exchange Online (domain outlook.office365.com) Outlook for Windows, a new, free Outlook application that is preloaded ...
A domain controller is a server running the Active Directory Domain Services (AD DS) role. It authenticates and authorizes all users and computers in a Windows domain-type network, assigning and enforcing security policies for all computers and installing or updating software. For example, when a user logs into a computer which is part of a Windows domain, Active Directory checks the submitted ...
Windows Server Essentials (formerly Small Business Server or SBS) [2] is an integrated server suite from Microsoft for businesses with no more than 25 users or 50 devices. It includes Windows Server, Exchange Server, Windows SharePoint Services, and Microsoft Outlook. Application server technologies are tightly integrated to provide and offer ...
A global wave of cyberattacks and data breaches began in January 2021 after four zero-day exploits were discovered in on-premises Microsoft Exchange Servers, giving attackers full access to user emails and passwords on affected servers, administrator privileges on the server, and access to connected devices on the same network. Attackers typically install a backdoor that allows the attacker ...