i cant send email from my exchange 2003 to Hotmail although i am not listed in other sites and i can send to yahoo and gmail. when i send email to Hotmail i receive this message.
#5.5.0 smtp;550 SC-001 (COL0-MC2-F23) Unfortunately, messages from 0.0.0.0 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
please i need you help send me to my email email@example.com