note 55022 added to ref.mail

I m having a problem with the STMP in the mail() function here is the error message i get Warning: mail(): SMTP server response: 554 <hawkey_90@hotmail.com>: Recipient address rejected: Relay access denied in \\nas13ent\domains\g\ graham-hawkesworth.co.uk\user\htdocs\beta\dsg\submit2.php on line 40 Is their any remedies? ---- Manual Page -- http://www.php.net/manual/en/ref.mail.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55022 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55022&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55022&report=yes Search -- http://master.php.net/manage/user-notes.php