Dualog Business Mail - Outlook POP3 Error (0x800CCC90 / 0x8004210E)

INTRODUCTION

The Outlook error 0x800CCC90 and 0x8004210E are related to an account-specific POP3 issue.

This article explains the steps that could be taken to resolve the problem.

Please keep in mind that the steps below must be completed on the Dualog server and may not be applicable to all situations or outlook error messages.

STEPS

1. Login to Dualog Portal with a valid account.
2. Expand the menu located on the top-left corner > Connection Suite > CS Accounts
3. Search and click on the affected email address
4. Take note of the "user ID" found at the end of the URL
   
5. On the physical Dualog server, click the search bar (Binoculars icon) for Windows 10
6. Type "stop connection" and click on "Stop Connection Suite Services"
7. A black window will appear and proceed to stop all Dualog-related services automatically.
8. Press any continue on the keyboard to close the black window.
9. Open File Explorer > Navigate to ..Dualog\ConnectionSuite\smtp\indir of the Drive that Dualog has been installed (Default directory: C:\Dualog\ConnectionSuite\smtp\indir)
10. Right-click on the folder with the unique ID found in step 4 > Rename it to "_old" (Example: 574001_old)
    • Note: Renaming the folder has no consequences because it only serves as a cache.
      
11. On the physical Dualog server, click the search bar (Binoculars icon) for Windows 10
12. Type "start connection" and click on "Start Connection Suite Services"
13. A black window will appear and proceed to start all Dualog-related services automatically.
14. Press any continue on the keyboard to close the black window.
15. After restarting the Dualog services, a new folder with the unique user ID should be populated automatically.
16. Restart the Outlook client of the affected email account > Perform a manual send/receive
17. Check for any errors.