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: installing [Incident: 160203-000165]'
Server Error: 530
Server Response: 530 5.1.0 Authentication required
Server: 'mail.shaw.ca'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 587
Secure(SSL): Yes