Software⏱️ 3 min read📅 2026-06-11

How to Fix: Outlook 2013 IMAP synchronizing every second + error 800CCC0F-0-0-560

Outlook 2013 IMAP synchronization issue with error 800CCC0F-0-0-560, possible server incompatibility or client-side work-around.

Quick Answer: Try disabling IMAP synchronization for a few minutes to see if it resolves the issue.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🔧 Proven Troubleshooting Steps
  3. 🎯 Final Words

Outlook 2013 users are experiencing an issue where their IMAP synchronization becomes erratic after approximately 10 minutes, resulting in CPU usage spikes and error messages. This problem is affecting individuals who have successfully configured their IMAP accounts for Outlook 2013.

This frustrating issue is not only annoying but also prevents users from efficiently managing their email accounts. In this guide, we will explore the possible causes of this problem and provide step-by-step solutions to resolve it.

🛑 Root Causes of the Error

  • The primary cause of this issue lies in the way Outlook 2013 handles IMAP synchronization. The software is prone to misinterpreting IMAP commands, leading to an exponential increase in CPU usage and error messages.
  • An alternative reason for this problem could be related to server-side compatibility issues with the IMAP service provider. Some users have reported similar problems when using POP3 services without issue.

🔧 Proven Troubleshooting Steps

Method 1: Disabling IMAP Synchronization

  1. Step 1: To resolve this issue, try disabling IMAP synchronization in Outlook 2013. To do this, follow these steps:
  2. Step 2: 1. Open Outlook 2013 and go to the File tab.
  3. Step 3: 2. Click on Account Settings.
  4. Step 4: 3. Select the account you are experiencing issues with and click on Change.
  5. Step 5: 4. In the IMAP/POP settings section, uncheck the box next to 'Use IMAP' and select 'Leave a copy of messages on server'.
  6. Step 6: 5. Click OK to save the changes.

Method 2: Adjusting IMAP Settings

  1. Step 1: Another possible solution is to adjust the IMAP settings in Outlook 2013.
  2. Step 2: 1. Open Outlook 2013 and go to the File tab.
  3. Step 3: 2. Click on Account Settings.
  4. Step 4: 3. Select the account you are experiencing issues with and click on Change.
  5. Step 5: 4. In the IMAP/POP settings section, try adjusting the following settings:
  6. Step 6: - IMAP Server: Ensure that the IMAP server is correctly configured and up-to-date.
  7. Step 7: - IMAP Port: Try changing the IMAP port to a non-standard port (e.g., 143 instead of 993) to see if it resolves the issue.

🎯 Final Words

In conclusion, the erratic IMAP synchronization issue in Outlook 2013 can be resolved by disabling IMAP synchronization or adjusting the IMAP settings. By following these steps, users should be able to resolve this frustrating problem and efficiently manage their email accounts.

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