How to Fix Outlook Error 0x800ccc0f – A Complete Guide

Summary: This blog post will cover the Microsoft Outlook error 0x800ccc0, why it occurs, and how to troubleshoot it. This error may result in your Outlook data file being used as a data source and leave you at risk of losing vital information. It is also known as a timeout error in technical jargon.

Microsoft Outlook is an email client utilized by companies to communicate. It offers different services, including Calendar, meetings, notebook, email management, and more. Sometimes, after logging via the software, Microsoft Outlook refuses to send or receive the error message 0x800ccc0f when you try to send or receive an email.

What is the Error Code 0x800ccc0f in Microsoft Outlook?

An error code of 0x800CCC0F is generated while attempting to send an email from Microsoft Outlook. This error message is generated because Outlook cannot connect to the MailEnable server. The most likely reason is that a firewall prevents client and server communication.

What are the Reasons Behind the Outlook Reported Error 0x800ccc0f?

The Outlook error 0x800ccc0f in Windows 7 occurs due to various reasons such as may be related to the presence of viruses and malware in the computer.

  • Internet connection problems or poor network connectivity.
  • Incorrect email settings or configuration in Outlook.
  • Presence of corrupted or damaged Outlook data files.
  • Antivirus or firewall software blocking outgoing emails.
  • The large size of email attachments or a full mailbox exceeds the allowed limit.
  • Conflict with other installed programs or add-ins in Outlook.
  • Malware or virus infections in the computer affect the proper functioning of Outlook.

By trying these solutions, you can fix the Outlook error 0x800ccc0f and continue using your email account without any issues. If you’re experiencing Outlook Error 0x800ccc1a, here are some possible solutions.

Method 1: Incorrect account settings

  1. On your PC, launch the Outlook application.
  2. In the menu bar, click File in the upper-left corner of the Outlook window.
  3. Click on the Add Account option.
  4. On the Add Account pop-up, Select Manual setup or additional server types. Click Next.
  5. Choose the POP or IMAP option and click on Next.
  6. In Add Account window, fill in the appropriate fields that are mentioned below:
    1. Enter the name and email address.
    2. In the Account Type section, select the IMAP using the drop-down menu.
    3. In the Incoming mail server, set it to
    4. In the Outgoing mail server(SMTP), set to
    5. Enter your credentials (Username and Password).
  7. In the current window, click the More Settings button.
  8. Tab to Outgoing server.
  9. Now you’ve to check the My outgoing server (SMTP) requires authentication.
  10. Go to the Advanced tab.
    1. This section has a list of options; fill in the appropriate port numbers.
    2. Incoming server (IMAP) set to 993.
    3. Use the following type of encrypted connection – select SSL.
    4. Outgoing server (SMTP) set to 587.
    5. Use the following type of encrypted connection – select the TLS.
  11. Press the OK button to save the settings.
  12. Finally, click on the Next button under the Add Account window.

Are you having trouble with Outlook mail stuck in outbox? Here’s what you can do.

Method 2: Network connectivity issues

  1. First, Click on the Start button.
  2. Select Settings (gear icon) on the left sidebar.
  3. Navigate the Network & internet option.
  4. Turn on the Wi-Fi. It will show the available Wi-Fi.
  5. Choose the More options and then select the Show available networks.
  6. Choose your Wi-Fi, click on the Connect button and wait for a few seconds.
  7. Now, test the Wi-Fi connectivity speed.
  8. Open the browser and search for anything in the search bar.
  9. If the page loads quickly, then your Wi-Fi query is resolved.

Method 3: Antivirus or Firewall Software

  1. Click on the Start menu and choose the Control Panel.
  2. Pick the Windows Firewall function.
  3. Select the Allow a program or feature option from your Windows Firewall settings in the top-left pane.
  4. Then, go to Change settings > Allow another program.
  5. Select the Sync option and click on Add.
  6. Click OK at the bottom of the dialog box to exit.

If your Outlook rules aren’t working, here are some possible solutions to try.

Method 4: Incompatible Add-ins

  1. Launch the Outlook application and select File>Options>Add-ins.
  2. Select COM Add-ins from the drop-down menu and click Go button.
  3. Uncheck the box next to the add-in you want to disable and click OK.

Method 5: Corrupted PST File

  1. Find this path on your computer (the path varies to the Outlook version).
    1. C:\Program Files x86\Microsoft Office\{Office version}
  2. Locate the SCANPST.EXE file and run it.
  3. Choose the default Outlook PST file using the Browse button.
  4. Click on the Start the in-built tool will scan all errors.
  5. After scanning, if the tool detects any error, then hit the Repair button, and it will start the repair process.

Experiencing an Outlook crash exception code 0xc00005? Here are some possible solutions.

Method 6: Problem with Email Server

  1. Open the Outlook application on your system.
  2. In the menu bar, click on the File option.
  3. Visit the Info section and then click on Account and Social Network Settings.
  4. After that select the Account settings.
  5. Now, select the appropriate account and click on the Change button.
  6. Click More Settings and then Connection option.
  7. In the Outlook Anywhere window, choose Connect to Microsoft Exchange using HTTP.
  8. Select the Exchange Proxy Settings. Here, enter the URL that connects to the proxy server.
  9. Select the Connect using SSL Only option. After that, select Only connect to proxy servers that have this principal name in their certificate.
  10. Now, enter the URL.
  11. In the Proxy authentication settings section, select NTLM authentication.
  12. Finally, hit the OK button.


While the manual solutions discussed above can be helpful in resolving the Outlook error. It is important to exercise extreme caution when performing these tricks. Accidentally deleting your Outlook profile can result in the loss of all your important data, so it is crucial to be careful and double-check before making any changes. I hope the above methods can solve the Outlook error 0x800ccc0f.

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Sofia Smith is a technical content writer who has followed her passion for technology by authoring tech content at Sysvpro. Follow her on Twitter