Fix Outlook Error 0x800ccc0f With Easy Steps

Outlook Error 0x800ccc0f occurs while sending emails from Outlook. The following error can stop you from sending emails and can be really annoying sometimes. Various reasons can cause this error like if there’s an issue with an internet connection, your Windows firewall is interrupting with Outlook, faulty email configuration, and damaged Outlook components. If you are also getting Outlook Error 0x800ccc0f and need help, then you’ve landed in the right place. Given below are the solutions that you can use to fix Outlook Error 0x800ccc0f.

1. Check for connectivity issues

Firstly you should check your device's connection with the server. Ensure that your email configuration settings are accurate and if not correct them first. Also, ensure that your Internet connection is steady and not the reason for this error. To check if there’s an issue with your internet, try connecting your device to another WiFi temporarily.

2. Disable Your Windows Firewall And Antivirus Software

Sometimes, the Windows firewall interferes with the Outlook and server connection and can lead you to this Outlook Error 0x800ccc0f. Disabling the firewall on your device can stop the Outlook Error 0x800ccc0f if it is what is causing the issue. You should also disable any antivirus, anti-malware, or an anti-adware program installed on your device temporarily to find the real cause.

Thus, to check if this is the issue, disable your anti-virus, click the "startup tab" and then click "disable" in front of your antivirus software. Use the below steps to know how to Disable the Windows Firewall on your device:

A. Go to Control Panel and click on Network Connections

B. Place your cursor on your Internet connection name and right-click.

C. Select Properties Right-click on the internet connection you’re using and select "Properties" from the pop-up menu

D. Click on the Firewall option under the Security tab.

3. Set Server Timeout Settings At Higher

a. Launch your Outlook Mail and click on the "File" tab.

b. Click the Account Settings menu.

c. Now select Change and click on More Settings.

d. Select the "Advanced" tab and set the server timeouts to high.

e. Click "OKAY" to save your setting and exit.

4. Check your router’s Maximum Transmission Unit (MTU)

If all the above solutions fail to solve your problem, it’s time you should verify the MTU of your WiFi router. If the maximum transmission unit of your router is less than the size of the email you are trying to send then you can receive Outlook Error 0x800ccc0f. You need to adjust the outgoing mail sizes according to the MTU of your router.

5. Make Use Of Microsoft Inbox Repair Tool

This is the last step to fix Outlook Error 0x800ccc0f and if you’ve come to this point then it means there’s damage in the Outlook data file. If the Outlook data file, especially OST is corrupted or missing, it can cause Outlook Error 0x800ccc0f. To fix this, you can use the Microsoft Inbuilt Inbox Repair program (ScanOST.exe). Navigate and launch the tool on your PC following the on-screen prompts to repair the Outlook data file.

If you can’t fix the Outlook Error 0x800ccc0f by following the above steps, then give us a call at Outlook Support for assistance. Our outlook professional will help you diagnose the real cause of Outlook Error 0x800ccc0f and then fix it in a beat.