Technical mailbox required Exchange Online licence?

adam900331 361 Reputation points
2022-02-02T08:27:49.113+00:00

Hy!

I have some on-premise technical mailbox like Administrator@... etc. I would like to migrate these technical mailbox to Exchange Online. Can I assign licence to these technical users to use in O365? Is there any solution avoid to not assign licence these usr mailbox?

Thanks.

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Accepted answer
  1. Andy David - MVP 142.3K Reputation points MVP
    2022-02-02T12:39:23.66+00:00

    Yes, convert them to a shared mailbox and them move them to Office 365.
    The shared mailbox does not require a license and has a 50GB quota.
    Then give yourself full access to those mailboxes once they are moved to Exchange Online.

    Its important to concert to a shared mailbox first on-prem before moving
    and disable the AD account

    https://learn.microsoft.com/en-us/microsoft-365/admin/email/convert-user-mailbox-to-shared-mailbox?view=o365-worldwide
    Convert a user mailbox to a shared mailbox

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