What is Exchange Online?

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What is Exchange Online?

What Exchange Online is: Microsoft 365's cloud email and calendaring, how it fits the platform, the security and compliance layers, and running it well.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/what-is-exchange-online

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What is Exchange Online?

Microsoft 365's cloud email, calendar, and contacts service — the successor to on-premises Exchange Server — with mailboxes, shared mailboxes, resource mailboxes, mail flow rules, Exchange Online Protection for spam and…

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How big is an Exchange Online mailbox?

50 GB on Business plans, Office 365 E1, and Frontline F3 (2 GB on F3 in some plans), and 100 GB on E3/E5 and Exchange Online Plan 2, with an archive mailbox up to 1.5 TB with auto-expanding archiving on Plan 2. Shared m…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/what-is-exchange-online

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Do I still need an on-premises Exchange server?

Only for recipient management in a hybrid environment where accounts are mastered in Active Directory — and even that can be done with the Exchange management tools without a running server since Exchange 2019 CU12. Mai…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/what-is-exchange-online

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