cannot send mails to Hotmail via Triton

I cannot send mails to Hotmail via Triton all mails are stocked in the delay messages

" Reason for Delay Exception delay 2 (lost connection with mx1.hotmail.com[65.55.37.72] while sendi...)"  

although i can send mails to gmail  

then when i telnet to mx1.hotmail.com display the below 

220 BAY004-MC1F51.hotmail.com Sending unsolicited commercial or bulk e-mail to M                                                                     icrosoft's computer network is prohibited. Other restrictions are found at http:                                                                     //privacy.microsoft.com/en-us/anti-spam.mspx. Sun, 11 Oct 2015 04:37:33 -0700

my domain and IP are not listed