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Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Exchange Online service description
In this articleMicrosoft Exchange Online is a hosted messaging solution that delivers email, calendar, contacts, and tasks from PCs, the web, and mobile devices. It integrates fully with Azure Active Directory, enabling administrators to use group policies, as well as other administration tools, to manage Exchange Online features across their environment. Organizations that subscribe to Exchange Online retain control over the messaging services they offer to users. With the Exchange Online hosted plans described in this document, email is hosted on servers that support multiple customers simultaneously. These servers are housed in Microsoft datacenters and are accessible to users on a wide range of devices from inside a corporate network or over the Internet. Available plans for Exchange OnlineMicrosoft 365 is available in a variety of plans to best meet the needs of your organization. For detailed plan information on subscriptions that enable users for Exchange Online, see the full subscription comparison table. Note Each user who accesses the Exchange Online service must be assigned to a subscription plan, and each user subscription has its own mailbox. Folders and messages in these mailboxes reside at a Microsoft datacenter. User subscriptions are not required for conference rooms and shared mailboxes. These special mailbox types do not have login credentials, instead, licensed users with the appropriate permissions manage and access them via delegation. Microsoft 365 F1 does not include rights to an Exchange mailbox. To enable a full Teams experience, Microsoft 365 F1 licenses may come with the Exchange Online K1 service plan enabled. Although the Exchange Online K1 service plan will provision a mailbox for the user, Microsoft 365 F1 users are not entitled to use the mailbox. We recommend that you disable Outlook on the web via these steps and ask your users not to access the Exchange mailbox via any other methods. Feature availability (including standalone plans)The following table lists the major Exchange Online features available across plans (certain caveats apply -- see the footnotes for further information -- this table may change without notice). For the most up-to-date, complete list of features across plans, see Powerful tools to support your enterprise. For feature availability in Microsoft 365 business plans (basic, standard, and premium), see Microsoft 365 Business Plans, or visit your Message Center in the Microsoft 365 admin center or talk to your provider for more details on how the new Microsoft 365 Apps plan impacts you. Features available to all plansThese features are available for all Business (basic, standard, and premium), Enterprise (E1, E3, E5 and F3) and Exchange Online plans (1, 2 and Kiosk) – caveats apply see footnotes for further information.
Features available to some plansThese features are available to some plans – caveats apply see footnotes for further information (this table may change without notice).
1 Some third-party web parts and add-ins may not be available. Additional servicesScheduler for Microsoft 365Scheduler for Microsoft 365 is an add-on to Exchange Online that enables users to delegate their scheduling needs to a digital personal assistant. The assistant can schedule and reschedule appointments and meetings with people inside and outside of the organization. The assistant mailbox is set up and controlled by the tenant. To enable Scheduler, administrators need to set up the assistant's mailbox via a PowerShell cmdlet and purchase licenses for meeting organizers. To learn more about Scheduler and how it works, see Welcome to Scheduler for Microsoft 365. For Scheduler pricing and licensing, see Scheduler for Microsoft 365 licensing. Learn moreFor more information about Exchange Online, check out the following resources:
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