Windows Mail Error Code 0x800ccc90 (POP3) e-mail server Internal Error

Error 0x800CCC90: (POP3) e-mail server has reported an internal error

You might face Error 0x800CCC90: (POP3) e-mail server has reported an internal error while sending or receiving email in your outlook application.

The error message seems to be like:

Receiving’ reported error (0x800CCC90): ‘Your incoming (POP3) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).

The main reason for the internal error code 0x800CCC90 are

• Incorrect Credentials: Usage of incorrect username and password can be a likely reason. Make sure that the password you are trying to put belongs to the same email account. If an Outlook application is unable to match or sync the details, it will throw errors.
• External Applications: Firewall or Anti-Virus may also block the email access or other application functions. It is recommended to temporarily disable the firewall and anti-virus for the configuration function.
• Change in Port Number: Incorrect outgoing port number may also generate the error. There is also a possibility that your ISP has blocked the port of the particular email provider. It can be figured out by changing the port.

Resolution:

In order to fix the issue we can separate the POP3 accounts into smaller groups to make the Send/Receive process easier. Once groups are create one can access the group separately.

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Follow the steps to fix the error 0x800CCC90:

1. Open Outlook application and click “Send/Receive”, goto “Send/Receive groups” and then select the Define Send/Receive Groups.
   

   Step 1

2. Another pop-up will open, click New and under “Send/Receive Group Name” box give a name to the group.
   

   2

3. Under this new pop-up, choose the Accounts for which you want to create this group. You can choose more than one account as well and then select the “Include account in this send/receive group” checkbox.
   

   step 3

4. Select “Send Mail Items” and “Receive Mail Items” check box.
   

   step 4

5. Click “Download complete item, including attachments” and click “OK”.
   

   Step 5

6. You can create many such groups for small groups of accounts and once done, click “Close”.
   

   Step 6

7. Now to send or receive email for each group, go to Tools, point to Send/Receive and click the required name of the group.
   

   step 7

   Click here to chat with an Expert technician.