Microsoft on-premises server product that runs Office Online.
Dear Goldsmith, Richard
Welcome to the Microsoft Q&A Forum and thank you for reaching out to share your issue.
Based on the information you provided, I understand you're encountering the message: “There are more items in this folder. Connect to the server to see them.”
According to my research and testing, you can try the following steps to resolve the issue:
-Increase the Offline Mail Storage Duration
Go to File → Account Settings → Account Settings
Select your Exchange/Microsoft 365 account and click Change
Move the Mail to keep offline slider to All
Click Next → Finish, then restart Outlook
-Temporarily Switch to Online Mode
Go to File → Account Settings → Account Settings → Change → More Settings
In the Advanced tab, uncheck Use Cached Exchange Mode
- Click OK, then restart Outlook
-Clear Sync Issues with Command
- Close Outlook
- Press Win + R, type: outlook.exe /cleanips, and press Enter
- Reopen Outlook to refresh the sync process
I hope this information is helpful. Please try the steps above and let me know the result. If you need further assistance, feel free to reach out. I'm always here and ready to support you!
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