hotmaili bilmiyorum ama gmailin imap desteği ile çekilebiliyor.

<?php
$hostname = '{imap.gmail.com:993/imap/ssl}INBOX';
$username = '####@gmail.com';
$password = '######';

$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to Gmail: ' . imap_last_error());

$emails = imap_search($inbox,'UNSEEN');

if($emails) {
	foreach($emails as $email_number) {

	$cikti[] = imap_fetch_overview($inbox,$email_number,0);
	}
echo count($cikti) , " okunmamış";	

} 

imap_close($inbox);

?>