Outlook error codes 0x800CCC0D and 0x800CCC0E mean the email client cannot find or connect to the mail server. The most common causes are an incorrect server hostname, DNS issues, or a firewall blocking the connection.
Verify your incoming and outgoing server names
Both should be set to mail.yourdomain.com (replace with your actual domain). If you recently changed nameservers or your domain's DNS is not fully propagated, try using the server hostname instead. See your welcome email or cPanel > Server Information for the hostname.
01. What These Errors Mean
- 0x800CCC0D - "Cannot find the email server." Outlook cannot resolve the hostname you entered for the incoming or outgoing server.
- 0x800CCC0E - "Cannot connect to the server." Outlook found the server but cannot establish a connection, usually due to a port or firewall issue.
02. How to Fix
Check server settings
In Outlook, go to File > Account Settings > select your account > Change, and verify:
- Incoming server:
mail.yourdomain.com - Outgoing server:
mail.yourdomain.com - Username: Your full email address (e.g.,
[email protected]) - Ports: 993 (IMAP SSL) or 995 (POP3 SSL) incoming, 465 (SMTP SSL) outgoing
- Encryption: SSL/TLS
For the complete setup walkthrough, see How to Set Up Email in Microsoft Outlook.
Check for firewall blocks
If you entered incorrect passwords previously, your IP may be blocked. Use the Firewall Unblock tool to check.
Check DNS propagation
If you recently changed nameservers or DNS, mail.yourdomain.com may not be resolving yet. See DNS Changed But Site Not Showing. As a workaround, use the server hostname or IP instead of mail.yourdomain.com until DNS propagates.
Test webmail first
Try logging into webmail at https://yourdomain.com:2096. If webmail works, the server is fine and the issue is in Outlook's settings.
For other Outlook error codes, see Common Outlook Email Errors and our Email Troubleshooting Guide.
Still Cannot Connect?
If you have verified your settings and are not blocked by the firewall, open a ticket with a screenshot of your Outlook account settings.
Open a Support TicketFrequently Asked Questions
What do Outlook errors 0x800CCC0D and 0x800CCC0E mean?
They mean Outlook cannot find or connect to the mail server. The usual causes are an incorrect incoming or outgoing server hostname, a DNS problem resolving that name, or a firewall blocking the connection.
How do I fix Outlook error 0x800CCC0D?
Verify the mail server name is correct (your mail server hostname, not a typo), confirm the ports and SSL or TLS settings, and check that your network or antivirus firewall is not blocking the mail ports. Testing the account in Webmail confirms whether the server side is fine.
Why can Outlook not find the mail server?
Either the server name is misspelled or not resolving in DNS, or something between you and the server (a firewall, VPN, or ISP block) is stopping the connection. Re-enter the exact server name from cPanel Connect Devices and retry from another network if needed.
Could a firewall cause 0x800CCC0E?
Yes. A local firewall, an antivirus email shield, or your IP being blocked after failed logins can all produce this connect error. Temporarily disable the antivirus mail scanner to test, and contact support if your IP may be firewall-blocked.
Quick Recap
- 0x800CCC0D = cannot find server, 0x800CCC0E = cannot connect
- Server should be
mail.yourdomain.com - Use SSL/TLS with ports 993/995 (incoming) and 465 (outgoing)
- Check for firewall blocks if you had failed login attempts
- Test webmail first to confirm the server is working
Resolving Outlook connection errors · Last updated November 2026 · Browse all Email articles
