Prova a togliere \r
quindi fai così
Codice PHP:
$headers "MIME-Version: 1.0\n"
$headers .= "Content-type: text/html; charset=iso8859-1\n"
$headers .= "Content-Transfer-Encoding: 7bit\n"
$headers .= "From:mail@from.it\n"
mail("to@mail.it","subject","body",$headers);