Mac
Shared mailbox missing from Outlook for Mac sidebar
A shared mailbox was missing from Outlook for Mac. It was manually added back to the shared mailboxes list and access was confirmed.
Killed once by someone from XL.net, on 2026-03-06.
Affects
Apps
- Outlook for Mac
What you see
- The shared mailbox was removed from the Outlook for Mac sidebar.
- The mailbox was not available until it was added to the shared mailboxes list.
Why it happens
Likely Outlook for Mac did not automatically map the shared mailbox, so it had to be added manually.
When it shows up
A shared mailbox is missing from the Outlook for Mac sidebar or shared mailboxes list.
You are in this case if:
- Outlook for Mac is in use
- A shared mailbox is not listed under Shared Mailboxes
- The mailbox must be added manually before it can be opened
1 fix below
The steps that killed it
The steps are behind a quick check
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Someone from XL.net killed this on a Mac on 2026-03-06. It is written up from that one repair, so it cites no outside page.