How to fix Outlook error 0x800CCC90 when receiving emails on Windows

When sending and receiving emails from the Microsoft Outlook client, you may encounter error 0x800CCC90. Below are the causes and how to fix error 0x800CCC90 when receiving emails on Outlook .

Some common causes of error 0x800CCC90 are multiple POP3 accounts in an Outlook account , port blocking, and conflicts with Outlook clients. If your email client is affected by this error, here are some troubleshooting steps you can try.

How to fix error 0x800CCC90 when sending and receiving emails on Outlook

• Create and configure a new send & receive group
• Open the application in Safe Mode
• Remove and re-add email accounts
• Edit Outlook client

Create and configure a new send & receive group

A common factor causing error 0x800CCC90 is the existence of multiple POP3 accounts. To fix this error, you can create smaller send & receive groups in the Outlook client. It's also helpful if you handle some accounts more frequently than others.

To create a new send & receive group:

1. Open Outlook client on PC.

2. Next, open the Send/Receive tab in the toolbar.

3. Click the Send/Receive Groups drop-down and select Define Send/Receive Groups .

4. In the Send/Receive Groups dialog box , click New .

5. Here, enter the group name and click OK .

6. Next select the account in the Accounts section .

7. Now check the selection Include the selected account in this group .

8. In Account options , select Send mail items and Receive mail items .

9. Next, select Inbox options in the Folder Options section .

10. Select Download complete item including attachments .

11. Repeat the steps to configure more accounts and click Ok > Close to save the changes.

Open the application in Safe Mode

If the error persists, open the Outlook client in Safe Mode. In Safe Mode, the application opens in its default state and helps you determine if a third-party add-in is causing the error. This works similar to Windows Safe Mode but only for individual Microsoft applications.

To open the Outlook app in Safe Mode:

1. Press the Win key and type Outlook to find it on Windows Search . Don't choose it as soon as it appears.

2. Next, press & hold the Ctrl key on the keyboard, then double-click the Outlook shortcut to open this application. Don't release the Ctrl key until you see the Safe Mode prompt .

3. Click Yes to confirm and start Outlook in Safe Mode .

Next, select Profile Name as Outlook > click Yes .

5. While in Safe Mode , check to see if error 0x800CCC90 still exists when you send or receive emails.

If not, follow the steps below to confirm and remove problematic plugins. To disable Outlook Add-ins:

1, Open the Outlook client .

2. Click File > Options .

3. In the Outlook Options dialog box , open the Add-ins tab .

4. At the bottom of the page, click the Go button for Manage COM Add-ins .

5. In the Add-ins dialog box, uncheck all add-ins > click OK .

6. Next, restart the Outlook client, enable any add-in and check to see if error 0x800CCC90 has disappeared.

7. Enable all add-ins one by one until you find the problematic plugin.

Remove and re-add email accounts

1. Open the Outlook client and click File .

2. In the right panel, click the Account Settings drop-down and select Account Settings .

3. In the pop-up dialog box, select the account you want to delete and click Remove .

4. Click Yes to confirm action.

5. To add this account again, open Account Settings and click New .

6. Fill in your account details to log in.

Edit Outlook client

You can use available tools to find and fix errors with the Outlook client. Since the Outlook app is part of Microsoft Office, you will need to run this tool for all of Office to fix any related issues.

Be sure to save open documents and close all running Microsoft Office apps before starting this repair process.

To run the Outlook repair tool:

1. Press Win + I to open Settings.
2. Next, open the Apps tab in the left panel.
3. Click Apps & features and wait for this application page to load.
4. Here, determine the Microsoft Office version.
5. Click the 3-dot menu next to the application name and select Modify .
6. In the repair dialog box, select Online Repair . This option requires a stable Internet connection and takes a little longer. If not, select Quick Repair .
7. Click Repair twice to restart this process.
8. Once completed, restart your PC and check if the error is resolved.

Outlook errors can occur for many reasons, but the above simple ways can help you fix 0x800CCC90 when sending and receiving emails on Outlook . Hope the article is useful to you.