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How to search emails in shared mailboxes in Outlook 365
When I search keyword, Outlook only shows the result from my default mailbox (personal mailbox). I have linked 2 more common mailboxes that I share with my team. None of us is able to find emails in ...
Hi, most likely your shared mailboxes aren't being cached locally, so Windows Search isn't indexing them. That's why searches only return results from your default mailbox.
Try this first: File > Account Settings > Account Settings > double-click your account > More Settings > Advanced > uncheck "Download Shared Folders", then restart Outlook.
If that doesn't help, try adding each shared mailbox as a separate Exchange account. With Full Access permissions, Outlook can usually add it without needing the shared mailbox password. This is a common workaround when search doesn't work properly for shared mailboxes.
More info on how shared mailboxes work in Microsoft 365:
https://mstack360.com/shared-mailboxes-in-microsoft-365-explained-simply/