Software⏱️ 3 min read📅 2026-06-15

How to Fix: Error 800CCC0F-0-0-322 Synchronizing IMAP Sent folder in Outlook 2013

Outlook 2013 IMAP sync error 800CCC0F-0-0-322, possible causes and solutions.

Quick Answer: Try resetting the Outlook cache or reinstalling the IMAP account to resolve the issue.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. 🚀 How to Resolve This Issue
  3. 💡 Conclusion

The error 800CCC0F-0-0-322 in Outlook 2013 refers to a synchronization issue with IMAP sent folders, causing errors when syncing emails. This problem affects users who have multiple IMAP accounts set up in their Outlook application, particularly those using TalkTalk and Yahoo mailboxes.

This issue can be frustrating as it prevents users from fully synchronizing their email data between the desktop and webmail platforms. In this guide, we will explore potential root causes and provide step-by-step solutions to resolve this error.

💡 Why You Are Getting This Error

  • One main reason for this error is a conflict between the IMAP account settings and the local Outlook cache. When the CMOS battery died and the machine was showing the wrong time, it may have caused Windows not to check the correct time server, leading to inconsistencies in the email synchronization process.
  • Another possible cause could be issues with the IMAP protocol itself, such as server connectivity problems or incorrect mailbox settings.

🚀 How to Resolve This Issue

Resolving Conflicts Between IMAP Account Settings and Local Outlook Cache

  1. Step 1: Step 1: Restart Outlook and check if the error persists. If it does, proceed to the next step.
  2. Step 2: Step 2: Go to File > Options > Advanced > Send & Receive > Send as New Items, and click on 'Update Now'. This will force Outlook to refresh its cache and attempt to synchronize with the IMAP server again.
  3. Step 3: Step 3: Check the IMAP account settings in Outlook and ensure that all fields are correctly populated, including the username, password, and server settings. You can do this by going to File > Options > Advanced > Send & Receive > Send as New Items, and then clicking on 'Edit' next to each IMAP account.

Checking for IMAP Protocol Issues or Incorrect Mailbox Settings

  1. Step 1: Step 1: Check the email account settings in the TalkTalk and Yahoo mailboxes to ensure that all fields are correctly populated, including the username, password, and server settings.
  2. Step 2: Step 2: Contact the respective mail providers' technical support teams to verify if there are any issues with the IMAP protocol or mailbox settings on their end. They may be able to provide additional guidance or troubleshooting steps.

💡 Conclusion

To resolve the error 800CCC0F-0-0-322 in Outlook 2013, try resolving conflicts between IMAP account settings and local Outlook cache by restarting Outlook, updating the Send & Receive settings, and checking the email account settings. If issues persist, investigate potential IMAP protocol problems or incorrect mailbox settings with the mail providers' technical support teams.

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