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Easy ways to fix Microsoft outlook Error code 0x800CCC0D

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The error code 0x800CCC0D  typically occurs in email clients and is associated with the failure to establish a connection with the mail server. Here’s a simple explanation of this error: “Error 0x800CCC0D: Unable to establish a connection with the mail server.”

This error message indicates that your email client, such as Microsoft Outlook or Mozilla Thunderbird, is unable to connect to the mail server to send or receive emails.

Outlook Error 0x800ccc0d

Possible Causes for Microsoft outlook Error code 0x800CCC0D:

Incorrect server settings:

Make sure that you have entered the correct incoming and outgoing mail server settings in your email client. Double-check the server names, ports, and secure connection settings (SSL/TLS) provided by your email service provider.

Internet connectivity issues:

Verify that you have a stable internet connection. Poor or intermittent internet connectivity can prevent your email client from establishing a connection with the mail server.

Firewall or antivirus software:

Sometimes, the firewall or antivirus software on your computer can block the connection between your email client and the mail server. Temporarily disable these security programs and check if the error persists.

To resolve the 0x800CCC0D error, you can try the following troubleshooting steps:

Verify server settings:

Double-check the server settings in your email client, ensuring that they match the ones provided by your email service provider.

Check internet connection:

Make sure you have a stable and uninterrupted internet connection. Restarting your modem or router can sometimes resolve connectivity issues.

Temporarily disable firewall/antivirus:

Disable your firewall or antivirus software temporarily to check if they are blocking the connection. If the Microsoft 365 Error 0x800CCCOD disappears, adjust the settings to allow your email client to establish a connection.

More Possible Causes for this Microsoft 365 Error code 0x800CCC0D:

Incorrect username or password:

Ensure that you have entered the correct username and password for your email account. An incorrect login credential can prevent your email client from authenticating with the mail server.

Server maintenance or downtime:

Occasionally, the mail server you are trying to connect to might undergo maintenance or experience temporary downtime. In such cases, you can wait for some time and try connecting again later.

More Quick Troubleshooting steps to fix this Error 0x800CCC0D in outlook

Confirm username and password:

Ensure that you have entered the correct login credentials for your email account . Consider changing your password and updating it in your email client.

Contact email service provider:

If the issue persists, reach out to your email service provider’s support team for further assistance. They can provide specific guidance based on their server configuration and any known issues. Remember, it’s always a good idea to keep your email client and operating system updated to ensure compatibility and security.

Contact your ISP or network administrator:

If the problem persists, it may be a DNS issue. Contact your ISP or network administrator to verify the DNS settings and ensure they are correctly configured.


By following these steps, you should be able to troubleshoot and resolve the 0x800CCC0D error, allowing your email client to establish a successful connection with the mail server once again. For more information follow this assured assistance repair tool.

This problem is caused by incorrect account settings, which stop you from sending or receiving emails. If Outlook users encounter the error 0x800ccc0d, the following message appears on the screen. 

Choose Account Settings > Account Settings. On the Email tab, choose your account , and then choose Repair.

IMAP is used to retrieve messages, and SMTP is for sending data. IMAP works between the server and client for communication, and SMTP works between servers to transfer information.

Post Office Protocol version 3 (POP3) is a standard protocol used by email clients to retrieve email messages from a mail server POP3 only supports one-way email synchronization, only allowing users to download emails from a server to a client.

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