A line of messaging and collaborative software from Microsoft that is comprised of an email server, email client, and several groupware applications. The Microsoft Exchange line is prevalent in large corporations and is frequently used in conjunction with Microsoft Outlook.
Exchange Server enables a company's users to securely access communications like e-mail messages, voice mail, instant messaging and SMS text messages from their desktops, Web browsers or mobile devices.
The latest release of Exchange Server, Microsoft Exchange Server 2010, made its debut on November 9, 2009. Exchange Server 2010 features Microsoft's Software-plus-Services strategy at its core, which gives companies the opportunity to choose from a combination of on-premises, hosted, cloud-based, and hybrid solutions for deployment.