Mailbox Names Missing in Favorites Section - Outlook LTSC 2024

Hello,

I’m experiencing an issue with Outlook LTSC 2024 where mailbox names are missing in the Favorites section of the folder pane. When I add a folder (e.g., the Inbox) from a shared mailbox to my Favorites, it only shows as "Inbox" without the associated mailbox name.

For example:

• On my own system, I see "Inbox - email address removed for privacy reasons" in Favorites.
• For the affected user, it just displays "Inbox."

This creates confusion as the user has access to many shared mailboxes, so the Favorites list ends up with multiple "Inbox" entries without any way to distinguish which mailbox they belong to.

Steps Taken:

1. Cached Exchange Mode: Verified this is turned off.
2. New Profile: Created a new Outlook profile. The issue persists across all profiles for the user.
3. Different Computer: The user logged into a different computer with the same Outlook version and settings as mine. The issue followed them, indicating it’s likely tied to their mailbox or Exchange settings.
4. Auto-Mapping: Verified that auto-mapping is working.
5. Folder Renaming: The "Rename Folder" option is greyed out and unavailable.
6. Reset Views: Folder views have been reset to defaults, but the problem persists.
7. Outlook Updates: Confirmed that Outlook is fully patched.

Environment Details:

• Outlook LTSC 2024 (fully patched)
• Exchange Online (auto-mapping enabled for shared mailboxes)
• Cached Exchange Mode is disabled

Questions:

1. Is there a specific setting in Exchange or Outlook that forces mailbox names to appear in the Favorites section?
2. Are there any additional registry settings or configurations that I might have missed?
3. Has anyone else experienced this issue, and if so, how was it resolved?

I’ve exhausted most of the common troubleshooting steps and would greatly appreciate any advice or solutions.

Thank you!