Yo lo tengo hecho haci y anda de 10... ajustalo a tu medida por medio de vb y demas... saudos
<html>
<head>
<meta http-equiv="Content-Language" content="es">
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Email</title>
</head>
<STYLE type=text/css>BODY {
SCROLLBAR-FACE-COLOR: #000000; SCROLLBAR-HIGHLIGHT-COLOR: white; SCROLLBAR-SHADOW-COLOR: white; SCROLLBAR-ARROW-COLOR: white; SCROLLBAR-TRACK-COLOR: #000000; SCROLLBAR-BASE-COLOR: white; scrollbar-dark-shadow-color: #000000; scrollbar-3d-light-color: black
}
</STYLE>
<body text="#FFFFFF" bgcolor="#000000">
<form method="GET" action="envio.php">
<p> </p>
<div align="center">
<center>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" width="358" height="230" id="AutoNumber1">
<tr>
<td width="81" height="21"><b><font size="2" face="Verdana">Nombre:</font></b></td>
<td width="229" height="15">
<input type="text" name="T1" size="44" style="color: #FFFFFF; font-family: Tahoma; font-size: 9pt; border: 1px solid #C0C0C0; background-color: #000000"></td>
</tr>
<tr>
<td width="81" height="18"></td>
<td width="229" height="9"></td>
</tr>
<tr>
<td width="81" height="16"><b><font size="2" face="Verdana">E-mail:</font></b></td>
<td width="229" height="16">
<input type="text" name="T2" size="44" style="font-size: 9pt; font-family: Tahoma; color: #FFFFFF; border: 1px solid #C0C0C0; background-color: #000000"></td>
</tr>
<tr>
<td width="81" height="18"></td>
<td width="229" height="18"></td>
</tr>
<tr>
<td width="81" height="15"><font size="2" face="Verdana"><b>Web</b></font><b><font size="2" face="Verdana">:</font></b></td>
<td width="229" height="15">
<input type="text" name="T3" size="44" style="color: #FFFFFF; font-family: Tahoma; font-size: 9pt; border: 1px solid #C0C0C0; background-color: #000000"></td>
</tr>
<tr>
<td width="81" height="17"></td>
<td width="229" height="18"></td>
</tr>
<tr>
<td width="81" height="28"><b><font size="2" face="Verdana">Comtenido:</font></b></td>
<td width="229" height="28"> </td>
</tr>
<tr>
<td width="81" height="126"> </td>
<td width="229" height="126">
<textarea rows="9" name="S1" cols="44" style="color: #FFFFFF; font-family: Tahoma; font-size: 9pt; border: 1px solid #C0C0C0; background-color: #000000"></textarea></td>
</tr>
<tr>
<td width="225" height="30" colspan="2"> </td>
</tr>
<tr>
<td width="92" height="8">
<p align="center"></td>
<td width="266" height="8">
<p align="left">
<input type="submit" value="Enviar" name="B1" style="color: #FFFFFF; border: 1px solid #C0C0C0; background-color: #000000">
<input type="reset" value="Restablecer" name="B2" style="color: #FFFFFF; border: 1px solid #C0C0C0; background-color: #000000"></td>
</tr>
</table>
</center>
</div>
</form>
</body>
</html>
<?php
$ip=$REMOTE_ADDR;
$nombre = $_POST['T1'];
$email = $_POST['T2'];
$web = $_POST['T3'];
$contenido = $_POST['S1'];
$destino= "tu - mil<br>";
$asunto= "Asunto<br>";
$mensaje= "$Nombre<br>, $email<br>, $web<br>, $contenido<br>, $ip<br>";
mail($destino, $asunto, $mensaje);
if(!mail($destino, $asunto, $mensaje)){
echo "No se podido enviar el mensaje";
}else{
echo "Se ha enviado el mensaje al Webmaster correctamente!";
}
?>
<html>
<head>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Envio E-mail</title>
</head>
<body bgcolor="#000000" text="#FFFFFF">
</body>
</html>
Saludos