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Can i give Exchange License for external user with Microsoft 365 E5 Developer License

Alex Bui 20 Reputation points
2024-05-13T01:57:21.9866667+00:00

Hi All,

I have an account with a Microsoft 365 E5 Developer license. I can invite a few external members into my organization, and I can assign licenses to them. They can use Microsoft 365 software like MS Teams and SharePoint normally. However, they cannot log into Outlook (Exchange) even though I checked and saw that Microsoft 365 E5 Developer includes Exchange Online Plan 2. I don't know if this is due to some setting or if there are other conditions missing to be able to use email. Can anyone help me with this issue?

Microsoft Exchange Online
Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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Microsoft Exchange Licensing
Microsoft Exchange Licensing
Microsoft Exchange: Microsoft messaging and collaboration software.Licensing: Rules, regulations, and restrictions that define how software can be used and distributed.
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  1. Bruce Jing-MSFT 1,230 Reputation points Microsoft Vendor
    2024-05-13T12:00:59.3633333+00:00

    Hi，

    Thanks for posting your question in the Microsoft Q&A forum.

    Based on your description, I conducted related experiments to invite external people in the Microsoft Entra Center.

    A screenshot of a computerDescription automatically generated

    After assigning the M365 license, I don't see that external mailbox in Exchange Online.

    I tried to log in using my external email account and password, but an error occurred.

    A close up of a signDescription automatically generated

    So it is not possible to log in to Outlook by assigning a license to external users.