troubleshooting Question

Shared Mailbox access in Office365

Avatar of gbarnes0990
gbarnes0990 asked on
Microsoft 365ExchangeOutlook
13 Comments1 Solution2037 ViewsLast Modified:

We are having issues with Shared Mailboxes. We grant permissions to users but then cannot open the Mailboxes. Scenario's we have are:-

Access is granted. Shared Mailbox can be opened in OWA but not Outlook
Access is granted User A can open the shared mailbox on one PC using Outlook but not another (all updates installed) User B with the same access rights can't open the mailbox on any PC running Outlook.

Error message is "Can't expand folder".

I have found a powershell script that adds the mailbox permission with -automapping $false and in some cases this works but others it doesn't.

Any help will be appreciated

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