Exchange plan 2?

Mikael Klimscha 0 Reputation points
2026-03-31T11:09:57.4033333+00:00

How to add Exchange online Plan 2 to my existing email account?

Exchange | Licensing
Exchange | Licensing

The framework for legally deploying and using Microsoft Exchange Server or Exchange Online, based on server and client access models.

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  1. AI answer

    2026-03-31T11:10:26.2233333+00:00

    Exchange Online Plan 2 is assigned through licensing, not directly on the mailbox.

    To add Exchange Online Plan 2 to an existing email account (user mailbox), the Microsoft 365 admin must:

    1. Assign or change the user’s license to one that includes Exchange Online Plan 2 (for example, Microsoft 365/Office 365 E3 or E5), or directly assign an Exchange Online Plan 2 standalone license.
    2. When the new license is applied, the corresponding ExchangeOnlineEnterprise mailbox plan is automatically applied to that mailbox. This mailbox plan controls mailbox properties such as storage and features.

    Mailbox plans are templates tied to license types. Changing the user’s license to one that includes Exchange Online Plan 2 is what effectively “adds” Plan 2 to the existing mailbox; the mailbox is then configured according to the ExchangeOnlineEnterprise mailbox plan.

    If the mailbox already exists and the license is changed, the settings from the new mailbox plan are applied to that existing mailbox.

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  2. Hin-V 16,830 Reputation points Microsoft External Staff Moderator
    2026-03-31T12:15:42.6833333+00:00

    Hi @Mikael Klimscha

    Just to clarify, are you referring to assigning Exchange Online Plan 2 to your corporate (business) account, or to your personal account? Exchange Online Plan 2 is only available for Microsoft 365 business or enterprise accounts.  It is not supported for personal Microsoft accounts such as Outlook.com, Hotmail, or Live. 

    If you want to assign Exchange Online Plan 2 to your business account, this action must be performed by a Microsoft 365 administrator. You can ask your administrator to follow the instructions in this article to proceed.

     User's image 

    Reference:

    Understand subscriptions and licenses in Microsoft 365 for business | Microsoft Learn 

    Please feel free to correct me if I misunderstood your request. If you have any additional concerns, feel free to comment below. I would be more than happy to assist. 

    Note: Please follow the steps in [our documentation] to enable e-mail notifications if you want to receive the related email notification for this thread. 

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