Hi,

I have 3 email accounts which I access through windows live. I can send emails using one account but not the other two and receive the following error message:

An unknown error has occurred.

Subject 'Re: hi'
Server Error: 421
Server Response: 421
Server: 'stmp.live.com'
Windows Live Mail Error ID: 0x800CCC67
Protocol: SMTP
Port: 587
Secure(SSL): Yes

All was working OK until recently.

Does anyone know how to fix this?