[drkrol]

Rise,
СТОП. Дело в php?

<?php
$number = $_POST['telephone'];
$error = "no";

if ($number == '') {
echo "notnumber";
$error = "yes";     
} else if(!$number || strlen($number)<10 || strlen($number)>16) {
echo "errornumber";
$error = "yes";
}


if($error=="no") {
$to      = 'mail@mail.ru';
$subject = 'Обратный звонок';
$message = "Обратный звонок $number";
$headers = 'From: mail@mail.ru' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

if(mail($to, $subject, $message, $headers)){
    echo "ok";
} else {
    echo "error";
}
}
?>