Remote Shared Mailbox

Question

Hi All

i am using exchange 2016 hybrid environment, I have remote shared mailbox and i want to give permissions to one user. I can login to Exchange online powershell and provide the below permissions. I would like to know from exchange onprem powershell can i give the permissions like add-remotemailboxpermission. experts guide me.

Add-MailboxPermission -Identity sharedmailbox1@Company portal .com -User user1@Company portal .com -AccessRights FullAccess -InheritanceType All
Add-RecipientPermission sharedmailbox1@Company portal .com -AccessRights SendAs -Trustee "user1@Company portal .com"
Set-Mailbox -Identity "sharedmailbox1@Company portal .com" -GrantSendOnBehalfTo "user1@Company portal .com"

Answer 1

Hi @Rising Flight ,

Actually you can't modify the remote mailboxes permission from the on-prem EMS. It's located in the cloud and you could only use Exchange Online Powershell to modify it(also online Admin Center).

You may receive a error said object not found on DC if you gonna try to run Add-MailboxPermission. And also there are no cmdlets like Add-RemoteMailboxPermission.

You could find all cmdlets here: https://learn.microsoft.com/en-us/powershell/module/exchange/?view=exchange-ps

Found a case that may help: https://www.reddit.com/r/PowerShell/comments/95wvgz/setting_delegation_permissions_in_hybrid/
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information..

Best regards,
Lou

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Answer 2

You can check out this KB for more details - https://learn.microsoft.com/en-us/powershell/module/exchange/?view=exchange-ps#sharing-and-collaboration