Hotmail.com does not receive emails when i send them with mail() function from PHP ... What is wrong ?? My script is : $to = "slbzlatv@hotmail.com"; $subject = "You've got mail!"; $message = "Hello someone."; $headers = "From: admin@domain.net\n"; // I suggest you try using only \n $headers .= "MIME-Version: 1.0\n"; $headers .= "Content-type: text/html; charset=iso-8859-1\n"; $headers .= "Return-path: me <admin@domain.net>\n"; $headers .= "X-Priority: 1\n"; $headers .= "X-MSmail-Priority: High\n"; $headers .= "X-mailer: PHP"; mail ($to, $subject, $message, $headers, "-f admin@domain.net"); ----- Qmail-send tells me this : @4000000044b6ceb7340da53c new msg 427543 @4000000044b6ceb7340f2fc4 info msg 427543: bytes 420 from <admin@hopzone.net> qp 8885 uid 33 @4000000044b6ceb738f2fcb4 starting delivery 754: msg 427543 to remote slbzlatv@hotmail.com @4000000044b6ceb738f346ec status: local 0/10 remote 1/255 @4000000044b6ceb935a661f4 delivery 754: success: 65.54.244.8_accepted_message./Remote_host_said:_250__<20060713225229.8884.qmail@mail.hophost.net>_Queued_mail_for_delivery/ @4000000044b6ceb935a901d4 status: local 0/10 remote 0/255 @4000000044b6ceb935aa3a54 end msg 427543 and slbzlatv@hotmail.com doesn`t receive any email ... I underline that if i send from outlook express it works