How to Fix Microsoft Outlook 0x800ccc7d Error

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0x800ccc7d is a Secure Sockets Layer (SSL) error message code that occurs in applications such as Microsoft Outlook or Outlook Express. The error message looks like this: “Unknown error 0x800ccc7d – Secure Sockets Layer.”

Many offices use Microsoft Outlook to communicate by email and send instant messages in the office. It is a multifunctional application that allows users to effectively interact with their colleagues, manage contacts, journals and reminders.

However, error 0x800ccc7d can affect your ability to send and receive emails effectively. Hence, it is recommended to have it repaired immediately.

If you encounter error code 0800ccc7d while using Microsoft Outlook or Outlook Express, don’t worry! This problem is easy to fix. In fact, repairs are so easy that you can do them yourself, even if you are not a technician.

Error code 0x800ccc7d probably hides the following reasons:

  • SMTP or outgoing server that does not support SSL.
  • Corrupted Outlook profile or incorrect or incorrect account settings.
  • Here are some methods you can use to fix this error:

Clear SSL cache

Some Outlook users also report that removing the SSL cache fixes this error. To clear the SSL cache, close your email client by clicking the Windows Start button in the lower left corner of your screen and then clicking Control Panel> Internet Options. In the “Internet Properties” window that opens, go to the “Content” tab and click the “Clear SSL State” button.

Reset Outlook preferences

Sometimes this error message can appear when the STMP server requires authentication or when the sender’s email address is not recognized. In this scenario, you need to check your Outlook settings to make sure your username and STMP server are correct. Follow this procedure:

Updated: May 2024

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  • Go to the Tools menu and click User Accounts.
  • Now click on your email account and check its properties.
  • Click General and make sure your email address is set up in your account control panel. Otherwise, edit and create them.
  • Then click on “Server” and check if the checkbox next to “My server must be authenticated” is checked. If not, check the bug fix.

Disable Secure Sockets Layer (SSL)

  • Open Outlook and click Tools.
  • From the Tools menu, select Account Settings.
  • Select your email account from the list and click “Change”. The messaging settings are displayed.
  • Click the “Advanced Settings …” button and select the “Advanced” tab.
  • Change the incoming server (POP3) to port 110.
  • Change outgoing traffic (SMTP) to port 25.
  • If enabled, clear the “This server requires an encrypted connection (SSL)” check box.
  • Select the Outbox tab and select the My Outgoing Mail Server (SMTP) requires authentication check box.
  • Click OK to update the settings.
  • Click Next, then click Finish.


If the above steps did not resolve the issue, you may need to create a new Outlook profile and reconfigure your email settings. Also try creating a new Windows user account. Hope this helps you solve the problems. If the error persists, you will need to contact your ISP for help.

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