IMAP Server Closed Connection Error Code: 0x800CCCDD in Outlook
Outlook Error 0x800cccdd is one of the most popular errors users encounter while working on IMAP server account. This errors makes users unable to access the Outlook functions and also becomes a hurdle for transferring (send / receive) emails. The Outlook client sends an IDLE Command to the mail server the mail server by default is set to force close these connections. The following article will show you how to adjust your scheduled send/receive to remove this error.
Symptoms of Microsoft Outlook Error Code 0x800cccdd
Have a look on how this Outlook IMAP error 0x800cccdd is detected.
- You will get “Your IMAP server closed the connection” message on your screen.
- Your Outlook application will constantly freeze after you add new account in Outlook.

Reasons for Outlook Error 0x800cccdd
Since IMAP protocol by default, synchronizes with the server (it is the property of IMAP), therefore it is not needed to schedule the send / receive emails manually. So, when a user, unknowingly enables the option of send/receive emails, the error code 0x800cccdd occurs.
Generally, users merge both the IMAP & POP accounts into the same group, which causes this error message “Your IMAP server closed the connection” to occur.
Solution to Outlook Error Code 0x800cccdd
The following solution is based off the Outlook 2010 client to resolve this minor Outlook IMAP error :
Step1. Open your Outlook application
Step2. Go to File tab and click on Options.

Step3. A new window will open, click on Advanced and then >> hit Send/Receive button.

Step4. Inside the Send/Receive Group you will find All Accounts option.
Under setting for group “All Accounts” uncheck the option "Schedule and Automatic Send/Receive every xx minutes"

Step5. Now click Close and Restart your Outlook.
Other Solutions
Despite the fact that MS Outlook error code 0x800cccdd is a minor one, it can cause major headaches in Outlook mailbox, if not resolved properly. Users must be aware with the Dos and Don’t s while dealing with such errors. One of the rare cases where the errors like IMAP error 0x800cccdd still shows up even after the manual solutions, can be due to corruption in Outlook mailbox. In that scenario, users may go for Outlook pst Repair software to repair the corrupt Outlook pst file.