Microsoft Outlook is a personal information manager from Microsoft. It is available as a standalone application, or as part of the Microsoft Office productivity suite.
Outlook is used to manage email, contact information, calendars, tasks, and notes. It also provides features for organizing and managing meetings, including support for attending or hosting online meetings.
Outlook has been around since 1997 and has been included in the Microsoft Office suite since 2003. It is one of the most popular email clients in use today.