I dont own a MAC or know anybody that does, but I was told on another forum that my email form (In PHP) does not work, or is having errors on a MAC. I got no response to my request on the forum for any further comment. Can somebody help me out with a MAC and tell me why this may or may not work? Thanks!

my actual form in html:
<form method="post" action="email.php">
<p align="left"><font color="#006BE1" size="4" face="Arial, Helvetica, sans-serif"><strong><font color="#5853BB">
<input name="firstname" type="text" id="firstname" style="background-color:#575757; color: #FFFFFF;" size="25">
</font></strong></font></p>
<p align="left"><font color="#006BE1" size="4" face="Arial, Helvetica, sans-serif"><strong><font color="#5853BB">
<input name="lastname" type="text" id="lastname" size="25" style="background-color:#575757; color: #FFFFFF;">
</font></strong></font></p>
<p align="left"><font color="#5853BB"><strong><font size="4" face="Arial, Helvetica, sans-serif">
<input name="email" type="text" id="email" style="background-color:#575757; color: #FFFFFF;" size="25">
</font></strong></font></p>
<p align="left"><font color="#5853BB"><strong><font size="4" face="Arial, Helvetica, sans-serif">
<input name="date" type="text" id="date" style="background-color:#575757; color: #FFFFFF;" size="25">
</font></strong></font></p>
<p align="left"><strong><font color="#006BE1" size="4" face="Arial, Helvetica, sans-serif">
<textarea name="explanation" cols="35" rows="6" id="explanation" style="background-color:#575757; color: #FFFFFF;"></textarea>
&nbsp; &nbsp; &nbsp;
<input type="submit" name="Submit" value="Submit">
</font></strong> </p>
</form>

and now my email.php file:

<?php

$fname=trim($_POST['firstname']);
$lname=trim($_POST['lastname']);
$email=trim($_POST['email']);
$date=trim($_POST['date']);
$explanation=trim($_POST['explanation']);

$Message="".
"<html>".
"<head>".
"<title>My first email form</title>".
"</head>".
"<body bgcolor=#ffffff topmargin=0 leftmargin=0 rightmargin=0>".
"<center>".
"<table width=50% border='0' bordercolor='#ffffff' cellspacing='5' cellpadding='5'>".
"<tr>".
"<td align=left>".
$fname." ".$lname."<br>".
"My email address is (".$email.")<br>".
"The date of my event is (".$date.")<br>".
"My event is: (".$explanation.")".
"</td>".
"</tr>".
"</table>".
"</center>".
"</body>".
"</html>";


$YourName="Sol C Joye";
$YourEmail="solcjoye@downonpaper.com";
$Subject="New Contact";

$headers = "MIME-Version: 1.0\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\r\n";
$headers .= "From:A prospective client<solcjoye@downonpaper.com>\r\n";
$headers .= "To: ".$YourName." <".$YourEmail.">\r\n";
$headers .= "Reply-Toown On Paper<solcjoye@downonpaper.com>\r\n";
$headers .= "X-Priority: 3\r\n";
$headers .= "X-MSMail-Priority: Normal\r\n";
$headers .= "X-Mailer: mail.downonpaper.com";


mail($YourEmail, $Subject, $Message, $headers);



$page="http://downonpaper.com";
header("location:".$page);

?>


Hopefully Im posting all the required info, thanks for any help!
The website it [URL=http://www.downonpaper.com] for further looking into. Thanks!