How to Fix Windows Live Mail Error 0x800CCC79 and Move to Outlook?

Admin | Email Conversion email migration How to's Software Technology | 3 minutes read | Last updated on February 8th, 2023,

Windows Live Mail is not so advance application and it became outdated email application that has so many issues and errors like deleted emails, variable email exchange, confusions in email metadata also Microsoft now stopped this freeware email client. WLM has and benefits that WLM is compatible with all Windows OS so that so many users still prefer it as a desktop email client for mailing purposes.

1 – In this blog, we are going to discuss Windows Live Mail Error 0x800CCC79 which most users complain about.

2 – Fix Windows Live Mail Error or Move Windows Live Mail to Outlook

1 – Windows Live Mail Error 0x800CCC79

Users get this error when Windows Live Mail users try to send mails to the intended addressee. But, instead of mail being sent, this Error 0x800CCC79 displayed before the user. This error also appears when tries login to WLM. This error 0x800CCC79 appears screen corner and goes automatically after a few seconds. This message is an exasperation every time users launch the Windows Live Mail.

How to Fix Windows Live Mail Error 0x800CCC79?

Here we are providing the solution to fix Windows Live Mail Error 0x800CCC79

1 – Whenever error message appears while trying to send mail. In that case, messages itself provide the cause of this error.

“The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was ‘’. Subject ‘****’, Account: ‘’, Server: ‘’, Protocol: SMTP, Server Response: ‘550 relay not permitted’, Port: 465, Secure (SSL): Yes, Server Error: 550, Error Number: 0x800CCC79.”

In this error server not allowing to send mail to the addressee, it means there is a server settings issue. There is an SMTP authentication that could be disabled. To fix this issue follow the instruction.

  • Open Windows Live Mail go to the account setting and select the properties

  • Go to the Server tab and click on the checkbox “My Server requires authentication and then click on “OK”

No reopen the Windows Live Mail and try sending mail and check the error appears again or not

2 – When the Error comes on the Login of WLM

This issue occurs when mail stuck in the outbox folder. Fix this problem with flowing instructions.

  • Login to the WLM when the error box left. Click on “File” then “Work Offline”. This would put the application on offline mode

  • After that open, the outbox, choose the mail then right-click and delete the mail

  • Repeat the process File and Work Offline section to disable the offline mode.
  • Restart the Windows Live Mail

Now weight and check the error comes during the launching the Windows Live Mail

Note: These were the solution to fix the error which you can choose to stay working on Windows Live Mail without any error and issue.

Are You Planning to Switch Windows Live Mail to Outlook?

Windows Live Mail Error 0x800CCC79 can be fixed by manual solutions but the best solution is exporting from Windows Live Mail to Outlook. If you have thought to switch Windows Live Mail as it is not a reliable email application to you, then here we recommend you to migrate Windows Live Mail to Outlook. The best option to export Windows Live Mail data to Outlook is to go with the professional Windows Live Mail Converter Tool that can export all the data from Windows Live Mail to Microsoft Outlook without any error. It also allows us to export Windows Live Mail to Office 365 cloud account.