Using Classic Outlook on Windows for personal email, calendar, and contact management
Dear A-Roberts,
Good morning! Thank you for posting in the Microsoft Community. We are happy to help you.
We are very sorry for the inconvenience caused. We have a hot problem as below details for reference:
Microosft has published an official article on this known issue, please refer to this link:
Outlook 2016 MSI isn't showing the sender in search results - Microsoft Support.
QUESTION
As of January 16, 2025, Outlook 2016 MSI has stopped showing the sender in search results, and the search results appear as unread.
For example, when you search your inbox with Outlook 2016, you find that the sender is not showing up in the From column in the reading pane search results, as shown below. The search results also appear as unread.
STATUS: INVESTIGATING
The Outlook team is investigating this issue.
If you need to work around the issue urgently, you can temporarily disable service search.
WORKAROUND
Temporarily disable Server-Assisted Search, and Outlook would return to the legacy Windows Desktop Search, with the following registry key:
HKEY_CURRENT_USER\software\policies\Microsoft\office\16.0\outlook\search DWORD: DisableServerAssistedSearch Value: 1
I hope the information helps!
At the same time, you could vote on this reply so other users who have the same problem can find this thread and know the updated information. That would be very helpful! Thanks in advance!
Your patience, understanding, and cooperation are greatly appreciated.
Sincerely
Microsoft Community Moderator