Outlook pop 3 mail retrieval does not work since about 3 weeks, while I can easily send mail via SMTP. On other email clients I can receive Pop3, so it is not a server problem.. It comes up with error 0x8004210A. How can I solve the problem?

Question

Outlook pop 3 mail retrieval does not work since about 3 weeks, while I can easily send mail via SMTP. On other email clients I can receive Pop3, so it is not a server problem.

I had the problem before and someone from the microsoft support team just re-installed my complete Office 365. But I am not willing to re-isntall office 365 ever 3-4 month

Answer 1

Hi @CHiemsch ,

The Outlook error 0x8004210A occurs when Microsoft Outlook fails to establish a connection with your email server. Here are some methods to troubleshoot and resolve this issue:

Consider increasing the account server’s timeout interval to avoid the 0x8004210A error.

• Go to the File menu and click Account Settings.
• Select the account you want to adjust and click Change.
• In the new window, click More Settings.
• Under the Advanced tab, manually increase the timeout.

Check Your Antivirus Scanner and Ensure It Is Disabled: This is because every time you send or receive emails from your Outlook mailbox, the antivirus software scans the emails to ensure safety. This might cause a delay. Therefore, it is recommended to update your antivirus software or temporarily disable the antivirus.

Create a new Outlook profile: If the problem persists, you might want to try creating a new Outlook profile. You can do this by going to Control Panel > Mail > Show Profiles > Add. After creating the new profile, add the problematic account. (Remember to back up any important data before making these changes.)

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