This document explains how to fix Microsoft Outlook error code 0x800CCC0B if it is not working properly or throwing an error while installing, updating,  launching/opening, performing action like sending or receiving emails, configuring emails etc.

The error message may look like:

  • An unknown error has occurred. Subject ‘XXX’, Account: ‘XXXX’, Server: ‘XXXXX’, Protocol: SMTP, Port: 25. Error code: 0x800CCC0B

This solutions applies for following version of Microsoft Outlook:

  • Outlook 2007
  • Outlook 2010
  • Outlook 2013
  • Outlook 365
  • Outlook 2016
  • Microsoft Office (2013/365/2016)
Error InformationError Descripton
Error 0x800CCC0B Outlook Overview
0x800CCC0B Error Code Log
Avg. Time to Resolve Issue   45 mins
Difficulty Critical
Log Name: Microsoft Outlook <version> 1.18
Source: System Error
Event ID: 2225
Operating System
  • Windows 7
  • Windows 8
  • Windows 10
Level: Application Level
User: <Outlook username>
  • Faulting Application Name: Microsoft Outlook <Application name>, version: 5.8.3388.31413, time stamp: 0×19655080
  • Faulting module name: Outlook  update.dll, version: 6.9.5084.40966
  • Exception code: 0xe09d608c
  • Fault offset: 0xa09b685a
  • Faulting process ID: 0×596
  • Faulting application start time: 0x19fadd2c44818115
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Program Files (x86)\Microsoft Outlook\<appname>
  • Report ID: b8c32e19-6656-67g2-3494-3156fge6e632

Cause of 0x800CCC0B Outlook Error Code

  • Slow Internet Connection
  • System Level Conflict

How to Resolve Outlook Error Code 0x800CCC0B

Step 1: Disable Proxy

1. Hold Win Key + R and Enter CMD
2. Hit Enter key
Office Resolve Error Proxy Check 3. In command Prompt Copy following commands (Simply select the command and hold ctrl+c and press ctrl+v in command prompt)

 netsh winhttp show proxy 

Check Proxy Setting

Note: You will need Administrator Access to Run the above command. Simply Right Click on CMD button and select “Run as Administrator

If you get the message “Direct Access (no proxy server)“, continue to the next step otherwise disable proxy from Network Settings.

 You can contact our 24×7 Live support for any help during the whole process. 

Step 2: Start Outlook in Safe Mode:
1. Hold Windows Key + R and Enter “Outlook /safe”
2. Click OK.

In most cases Outlook error code 0x800CCC0B should be resolved by following above steps. If however the issue still persists it means there is some critical issue with your system which needs to be fixed manually and is recommended to be done by an experienced Computer Technician.

You can chat one-on-one with one of our Outlook Support Representative 24/7 by clicking on the Chat button.

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Last Updated: 15/01/2016
Solution ID: 841140

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  • April 7th, 2016

    Posted In: Microsoft Outlook

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