Outlook Express Error 0x800ccc0f

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Task 'server name - Sending and Receiving' reported error (0x800ccc0f): 'The connection to the server was interrupted. If this problem continues, contact the server administrator or Internet service provider (ISP). The server responded: ? K'
According to Microsoft this error message may occur if Microsoft Outlook or Microsoft Outlook Express cannot establish a connection with your e-mail server. These error messages are frequently caused by one of the following:
  • You are not connected to the Internet or a network, or your mail server is temporarily unavailable.
  • Your account settings are incorrect.
  • Your user profile in Outlook is damaged.
  • An e-mail item on your POP3 server is damaged.
  • The configuration of your AV software is incorrect.
  • Outlook Express was removed from the computer or the installation is damaged.
  • The configuration of your personal firewall software is incorrect.
You may also receive an error message that includes one or more of the following error codes:
  • 0x800ccc15
  • 0x80042108
  • 0x800ccc0e
  • 0x8004210b
  • 0x800ccc0b
  • 0x800ccc79
  • 0x800ccc67
  • 0x80040900
  • 0x800ccc81
How to increase your timeout setting Outlook Express 5.x and 6.0
  1. Start Outlook Express.
  2. On the Tools menu, click Accounts.
  3. Click the Mail tab.
  4. Click your POP3 account, and then click Properties.
  5. Click the Advanced tab.
  6. Gradually increase the server time-out setting until the problem is resolved.
If the problem persists there is a list of advanced troubleshooting steps on the Microsoft support site


If you are receiving outlook error code 0x800ccc0f while accessing emails it means that the incoming server POP3 is down or your settings are incorrect. Check your incoming mail server configuration and verify the settings including port number 110.To increase the mail server timeouts you have to click on Tools, Account Settings, Mail, POP3 account, and then click on Advanced options to increase the server time out. You may also need to repair your PST file.