I get the following error message -

The message could not be sent because the server rejected the sender's email address. The sender's email address was *** Email address is removed for privacy ***'.

Subject 'Re: Directions'
Server Error: 530
Server Response: 530 Authentication required
Server: 'smtp.mail.com'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 25
Secure(SSL): No