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Outlook Error 0x800cce05
Outlook Error 0x800cce05

Most of the outlook users are getting outlook error code 0x800cce05 after upgrading Windows 10 or Office 365. Simply this error stops outlook to send mail however users are able to setup email with outlook but gets failed while sending or receiving email. If Outlook 2016 fails to send mail because of this error you may fix it using these techniques. But before moving next steps we want to make you more clear about this error. Just see the scenario where an outlook user gets this same error.

He does clean install of Windows 10 and then re-installed Office 365 from Microsoft subscription which includes Outlook 2016. When he try to set up email accounts it connects to respective ISP but fails to send test email with following error message:

Unknown error occurred, error code: 0x800cce05

How to fix this error code?

Take a cup of tea and relaxed. It is not a toughest job to fix this error and you can remove this error yourself. As this error looks very critical but the fixing is very easy. Follow the given steps to fix this error.

  1. Open Command Prompt as Administrator. Click on Start Menu > Type cmd in search box > right click on it and select Run as Administrator.
    CMD as Administrator
  2. Now type following command and press enter.

         sfc /scannow



This command will start a verification process and will take few minutes to complete. Within verification process it scans and finds several corrupt files and repairs them. After finishing the process take a restart of your system and start sending email using Outlook without getting unknown error code 0x800cce05.

However, some of user complains that after fixing this error they are getting another outlook error like Sending error 0x800CCC13. If you are also getting this error then you must see this article how to fix outlook sending error code 0x800CCC13.

If the above solution didn’t clear error then most probably your outlook data file is corrupted. When Outlook Data File (also known as PST File) gets corrupted or damaged it stops outlook from working smoothly and raises numbers of unknown error code. So, you must use Stellar Outlook PST Repair Tool to repair your damage PST File. This tool recovers all the items from damaged PST file including deleted emails and contacts and store into a fresh new PST File. After repairing PST File using this tool the unknown error code 0x800cce05 will get removed.

Fix Unknown Error Code 0x800CCE05 using Stellar Phoenix Outlook PST Repair Tool

[HELP] Unknown Error Code 0x800cce05 with Windows 10 and Office 365

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