<?
$to = $_POST["to"]; 
$subj = $_POST["subj"]; 
$mes = $_POST["mes"]; 
$from = $_POST["from"]; 
$head="Content-Type: text/plain;"; 
if mail($to, $subj, $mes, $from, $head);{
echo "Mail has been sended.";
} else {
echo "Mail was not sended.";
}
?>

<form method=post action="mail.php">
To:<input type=text name=email><br>
Subj:<input type=text name=subj><br>
From:<input type=text name=from><br>
<textarea cols=40 rows=10 name=mess>
</textarea><br>
<input type=submit name=mail>
</form>