How to Fix the 0x800CCC90 Outlook Error When Receiving Emails on Windows
When sending and receiving emails from your Microsoft Outlook client, you may encounter the 0x800CCC90 error. This error can occur due to several reasons.
Some common contributing factors include multiple POP3 accounts in your outlook profile, port blocking, and issues with the Outlook client. If your email client is affected by this error, here are a few troubleshooting steps you can seek to resolve the error in Windows.

1. Create and Configure a New Send and Receive Group
A common contributing factor to the 0x800CCC90 error is the existence of multiple POP3 accounts. To fix the error, you can create smaller Send and Receive Groups in the Outlook client. It is also useful if you deal with some accounts more often than others.
To create a new Send and Receive Group:

2. Launch the App in Safe Mode
If the error persists,launch the Outlook client in Safe Mode. In Safe Mode, the app opens in its default state and helps you determine if a third-party add-in is causing the error. This works similarly toWindows Safe Modebut is limited to individual Microsoft apps.
To open the Outlook app in Safe Mode:

If not, follow the steps below to identify and remove problematic plugins. To disable Outlook Add-ins:
3. Remove and Re-Add Your Email Account
Another handy fix you can try is removing and re-adding your email account. This should work if the error is triggered due to a temporary issue.
To remove and re-add your email account in Outlook:

4. Repair the Outlook Client
you may run the built-in repair tool to find and fix issues with the Outlook client. Since the Outlook app is part of Microsoft Office, you will need to run the repair tool for the entire Office suite to try and fix any issues with the app.
Make sure to save your open documents and close all the Microsoft Office apps if running before initiating the repair process.

To run the Outlook repair tool:
Fixing the 0x800CCC90 Outlook Error Code
This Outlook error can occur due to many reasons. But you should be able to resolve the error using the troubleshooting steps in the article. If the issue persists, check your third-party antivirus firewall settings. Disabling the firewall temporarily can help you identify any conflict between the apps.
If the error is resolved, but Outlook still doesn’t receive emails, check your junk box, email sorting options, and block list to resolve the issue.
Stuck with an empty inbox? Check out these fixes that can help resolve why Outlook isn’t receiving emails.
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