note 70546 added to ref.mail

does mail() have a problem sending to email adresses where the domain starts with a number? I have tried it on several occasions and the mail is never received. When I try the same script with another email adress, like gmail.com or hotmail or other things, the mails is received. Can someone verify the test? ---- Server IP: 62.73.196.231 Probable Submitter: 83.108.194.186 ---- Manual Page -- http://www.php.net/manual/en/ref.mail.php Edit -- https://master.php.net/note/edit/70546 Del: integrated -- https://master.php.net/note/delete/70546/integrated Del: useless -- https://master.php.net/note/delete/70546/useless Del: bad code -- https://master.php.net/note/delete/70546/bad+code Del: spam -- https://master.php.net/note/delete/70546/spam Del: non-english -- https://master.php.net/note/delete/70546/non-english Del: in docs -- https://master.php.net/note/delete/70546/in+docs Del: other reasons-- https://master.php.net/note/delete/70546 Reject -- https://master.php.net/note/reject/70546 Search -- https://master.php.net/manage/user-notes.php