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How to restore a room mailbox deleted

J-3804 1,601 Reputation points
2021-10-18T22:22:01.903+00:00

Hi Team,

We have a hybrid environment, we have deleted a room mailbox by accident last week. Could you please send us the steps on how we can restore the room resource?

Thank you for your help,

Exchange | Hybrid management
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  1. KyleXu-MSFT 26,396 Reputation points
    2021-10-19T07:31:21.1+00:00

    @J-3804
    If this room mailbox is soft deleted. You could try with suggestion below:

    For Exchange on-premises room mailbox, you could follow this article to recover it: This example connects a room mailbox

    For Exchange online, you could try to use command below to undo the deleted action: 

    Undo-SoftDeletedMailbox -SoftDeletedObject onlineroom2

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  1. Amit Singh 5,306 Reputation points
    2021-10-19T10:46:46.713+00:00
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  2. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-10-19T11:40:51.527+00:00

    None of the articles posted apply depending on how it was deleted in a hybrid environment, please tell us how the mailbox was deleted.

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  3. J-3804 1,601 Reputation points
    2021-10-21T22:14:49.407+00:00

    the user mailbox was deleted accidentally (soft deleted) in AD and the mailbox was in the cloud but after we restored the user mailbox the issue was solved.

    Thank you for your help guys!

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