These recipients of your message have been processed by the mail server:
spargentino@hotmail.com; Failed; 5.3.0 (other or undefined mail system status)
Remote MTA mx4.hotmail.com: network error
- SMTP protocol diagnostic: 550 SC-001 Unfortunately, messages from 80.76.155.36 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.