How to Fix Outlook Error Code 0x800CCC6F

How to Fix Outlook Error Code 0x800CCC6F

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Outlook Error Code 0x800CCC6F usually appears when there’s a problem sending or receiving emails due to incorrect server settings, SSL or TLS misconfigurations, or interference from security software. This is commonly triggered by outgoing mail (SMTP) issues.

To fix the error, open Outlook and go to File → Account Settings → Account Settings, select your email account, click Change → More Settings → Advanced, and check the outgoing server (SMTP) port. For most providers, the correct port is 465 for SSL or 587 for TLS. Also, ensure that the “This server requires an encrypted connection (SSL/TLS)” option matches your email service provider’s recommendation.

If everything is configured correctly and the issue remains, temporarily disable your antivirus or firewall software, as these tools might be blocking the SMTP connection. Restart Outlook afterward and test sending an email again.

You can also try switching between SSL and TLS settings or updating the port based on your provider’s latest configuration. If that doesn’t help, remove and re-add the account to ensure a clean profile setup.

For detailed troubleshooting instructions and additional steps to resolve this issue, refer to the full guide available at WinChatSupport.

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