Microsoft Outlook is a personal information manager software system from Microsoft, available as part of the Microsoft 365 software suites. It is primarily known as an email client for businesses, but it also includes functions such as calendaring, task managing, contact managing, note-taking, journal logging, web browsing, and RSS news aggregation. Outlook is part of the Office Suite and can be used as a standalone application. It helps users access Microsoft Exchange Server email and can be deployed as multi-user software for shared functions such as mailboxes, calendars, folders, and data aggregation. Additionally, Outlook includes versions such as Outlook on the web, Outlook for Windows, Outlook Mobile, and Outlook.com, which is a free personal email service offered by Microsoft. Outlook allows users to organize email, manage and share calendars, share files from the cloud, and stay connected and productive wherever they are. It also provides access to contact, email, calendar, and task management features, and can be integrated with Microsoft SharePoint for document sharing and collaboration. In addition to its email capabilities, Outlook offers features such as automatic addition of travel reservations to the calendar, new item alerts, and the ability to easily switch between different functions within the application.