Exchange Online is Microsoft’s cloud service for email, calendars and contacts.
What does this mean in practice?
Users can access their email through Outlook or a web browser. Outlook is an application; Exchange Online is the service that runs the mailboxes and handles communication.
Example use case
A company organises its enquiries mailbox and assigns responsibility for customer messages. A shared calendar helps people check availability when arranging a meeting.
Things to consider
Before implementation, review licences, permissions and how mailboxes are used. Different mailbox types and scenarios can have different requirements.
Related terms
See also: Microsoft 365 administration.
Sources: Microsoft Learn — Exchange Online.