Outlook error 0x800CCC67 – Almost every organization has started relying on MS Outlook to send / receive emails. Although Outlook is simple and easy to use, there are many errors by users which makes using MS Outlook a bit challenging. One such error is ‘0x800CCC67’, which is widely encountered by Outlook users.

We will discuss the factors that led to this error, as well as we will talk about solutions that can be used to solve the MS Outlook ‘0x800CCC67’ error.

Also Read: How to Fix “Outlook error 0x8004060c” when send/receive process

The reason behind the Outlook error 0x800CCC67

There are no definite reasons for the Outlook 0x800CCC67 error, as several scenarios can cause this error. Some reasons for this error are:

  • Downloading or installing Outlook for the first time on a new system
  • Deleting Outlook-related files by some third-party applications
  • Due to malware or virus infection
  • If registry files are corrupted due to MS Outlook installation

Message you receive with error 0x800CCC67

When MS Outlook is suffering from 0x800CCC67, you will receive the following error messages on your screen.

  • A 0x800CCC67 error appears on the screen, and MS Outlook crashes immediately
  • “SMTP_421_NOT_AVAILABLE” message appears on screen
  • Computer freezes again and again
  • Windows slows down and provides a late response to any input

If you are experiencing any of these messages or scenarios, MS Outlook is experiencing a 0x800CCC67 error. So, let’s move to solutions to fix this error.

Ways to fix Outlook 0x800CCC67 error

Various methods are available to correct the 0x800CCC67 error. Here we have covered the most reliable solutions to correct errors.

Registry file repair

The first method to resolve the error is to repair or edit the registry files of Windows. But, make sure that you have sufficient understanding of how to edit registry files, otherwise it can cause issues.

Disable antivirus

Antivirus installed on your system can also be a reason behind this error. But we are not talking about pre-installed antivirus on your system. We are talking about the third party antivirus that you have installed on your system. For example, if you have installed AVG Antivirus on your system, disable it.

Also Read: Outlook Express in Windows 10 – Download and Install

Reinstall MS Outlook on your system

Another method that can be used to correct the error is restoring MS Outlook on the system. Now, whether you are using Outlook 2007 or 2016, the installation process depends on the operating system. Here, we will tell you how to reinstall Outlook on Windows 10.

  • Go to the Start menu and find MS Outlook.
  • Right-click the MS Outlook icon to check the available options.
    Click Uninstall to remove Outlook from your windows.

After uninstalling MS Outlook, you can easily restore it from the downloaded file.

Change SMTP port

Many ports are used when using an email application, and SMTP Error is the most important port among them. So, you need to check whether the SMTP port is correct or not. To check this, go to Email Settings and check the port mentioned under Outgoing Mail Server.

Also Read: Fix Outlook Error 0X800408FC when send/receive Email

After modifying the port, try sending the email again. However, if the problem still exists, turn the router off for a full minute and turn on the power again to verify it.

Scan the system for viruses or malware

Sometimes, a virus or malware can cause Outlook to behave improperly or cause this error. This is why it is strongly recommended to scan your system for any virus or malware activities. You can use an in-built firewall by Microsoft to remove any virus from the system. And if you do not have an anti-virus, install it immediately and check for any viruses.

Restore system

Restoring your system allows you to restore all your settings so that installed applications work properly. To reinstall your system in Windows 10, you should enable it first. With this feature, you restore the system’s settings to the previous restore point so that all applications and settings at that point are restored.

Also Read: How to fix Outlook error 0x80042108 in Windows 10

Use a professional PST repair tool

If none of the above methods work in fixing the 0x800CCC67 error, then chances are that the PST file is corrupt and is causing the error. In such cases, it is recommended to fix the PST file. Only limited options are available to repair PST files. So, we recommend you to use Kernel Outlook PST Repair tool, which is designed to fix the corruption and errors of Outlook PST files. With this tool you can repair any size PST file.

The conclusion to fix Outlook error 0x800CCC67

It is very common to encounter errors in Outlook, because this application is hundred percent correct. But, some errors often cause a lot of problems compared to other errors, and those Outlook errors 0x800CCC67 error. Therefore, we discussed the common reasons behind this error, as well as practical solutions to solve this error.

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