Thanks. But for Oiutlook desktop, I am seeing it’s not working (the shared mailbox has to be added manually). And that’s with outlook 2019 and 365 (are there older versions that it won’t work with?)

It seems like it can take a day+ before it will automatically show up. Not sure if its from things I did during that day or it just takes that long?

And also related to shared mailboxes – sending new emails from that address when you have Send As permission… after the first time choosing it from the GAL,, the address shows when you click on ‘from’. BUt choosing the address from that rather than the GAL, then send, it bounces back with ‘ This message could not be sent. You do not have the permission to send the message on behalf of the specified user. ‘

That is the case for both distribution lists and shared mailboxes with send as permissions, days / weeks after setting up the DL or shared mailbox

Auto-mapping only works on Outlook desktop apps. It won’t work on Outlook web. For Outlook web, right-click Folder on the left and choose Add shared Folder.

Talking to the CSP / disctributor I get m365 from, they said they ran these commands. for the specific mailbox / user. I had already added the mailbox manually, so I added some other users as members, ran the modified commands and they still didn’t get the shared mailbox to show up in outlook (and should it also show in outlook on the web? cause it isn’t).

Remove-MailboxPermission -Identity ops@domain.com -User sue@domain.com -AccessRights FullAccess
Add-MailboxPermission -Identity ops@domain.com -User sue@domain.com -AccessRights FullAccess -AutoMapping:$true

Any idea? is it user error? Or autologging doesn’t really work?

And the shared mailbox doesn’t show automatically in outlook on web either.