The message could not be sent with smtp.1und1.de – error 0x800CCC79

15. May 2014 · Write a comment · Categories: Uncategorized · Tags: , ,

Hi, can you please help me.

My Windows Live Mail doesn't send my email, but I am able to receive emails.

This is my Error message.

The message could not be sent. The authentication setting might not be correct for your outgoing e-mail [SMTP] server. For help solving this problem, go to Help, search for "Troubleshoot Windows Live Mail", and read the "I'm having problems sending e-mail" section. If you need help determining the proper server settings, please contact your e-mail service provider.


Subject 'hi'
Server Error: 550
Server Response: 550 must be authenticated
Server: 'smtp.1und1.de'
Windows Live Mail Error ID: 0x800CCC79
Protocol: SMTP
Port: 587
Secure(SSL): Yes

Thanks

Denise

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