Hi @Gs ,
Suddenly outlook 2019 stop shown new incoming emails in search result until restart outlook
Have you performed any special operations before it(download some tools, install any add-ins or others)?
According to your description, I understand the new incoming emails could appear in your Inbox normally but just couldn't be shown in search result when you search them until you restart the Outlook, right?
If so, according to my tests, I have tried to add my exchange account in Outlook 2019, and found the new coming message could be searched out normally, it seems to I haven't reproduce your issue. Due to you have tried to troubleshoot it through lots of methods, I would give you some suggestions in other aspects.
- Based on my research, corrupted profile may cause Outlook couldn't search the messages normally, so please try to recreate a new profile and re-add your exchange account to check if the issue has any difference(Control Panel>Mail>Show Profiles>Add>re-add your account).
- Also, if you have installed any add-ins befor it, in order to avoid the interference of add-ins, it's suggested to restart your Outlook in safe mode to test(Windows + R> type"Outlook.exe /safe">Enter).
If your issue has any update, please feel free to post back. Thanks for your understanding.
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