Outlook Express 0x800CCC79 error message solution

Need help. Can’t send out any messages and getting the following error
Server response, ‘550 Administration prohibition – relaying not allowed’, Port 25 Secure (SSL): No. Server Error 550. Error number 0x800CCC79
Would appreciate your specialist comments.
Derek Styles

Outlook Express helpfully displays an error message when it’s not able to send email. The message typically has an error number, which for most people carries no meaning and simply adds to the frustration. The Outlook Express 0x800CCC79 error is a case in point. Here is a simple solution to resolve the problem.

Solution to Outlook Express error message 0x800CCC79

Without going into technicalities, the 0x800CCC79 error is shown by Outlook Express when there is a problem with the SMTP server settings. The simple and quick resolution to this problem is to follow the steps below:

1. Go to “Tools” -> “Accounts“.
2. From the Internet Accounts pop-up, select the account that’s giving you the problem and click the “Properties” button.
3. Move to the “Servers” tab and put a check mark in front of “My server requires authentication“.

   

4. Click “Apply” -> “OK” and try sending an email.
5. The above solution would probably work. If Outlook Express still shows error 0x800CCC79, you might need to provide the account username and password (image below) once again by clicking on the “Settings” button (above image).

   

Conclusion: If you cannot send email from Outlook Express, you would have to fiddle around with the SMTP server settings. The 0x800CCC79 error is shown when emails are sent without server authentication.