I have a form from which after a user fills the form, when he clicks on the submit button it should send the form information to me as an email and also at the same time display a thank you page for the user. This works in IE perfectly. But in NN6 it doesnt work at all. In NN 4.7 it just displays the thank you page but doesnt send the email.

Here is the code:
<html>
<head>
<title></title>
<SCRIPT language=JAVASCRIPT>
var submitted=0;
function Validator(frmfeedback)
{
if (submitted==0) {
if (frmfeedback.firstname.value.length == 0) {
alert("Please enter your first name");
frmfeedback.firstname.focus();
return false ;
}
if (frmfeedback.lastname.value.length == 0) {
alert("Please enter your last name");
frmfeedback.lastname.focus();
return false;
}
if (frmfeedback.company.value.length == 0){
alert("Please enter your organization");
frmfeedback.company.focus();
return false;
}

if (frmfeedback.address1.value.length == 0){
alert("Please enter your address");
frmfeedback.address1.focus();
return false;
}
if (frmfeedback.city.value.length == 0){
alert("Please enter the city");
frmfeedback.city.focus();
return false;
}
if (frmfeedback.state.value.length == 0){
alert("Please enter the State/Province/Region");
frmfeedback.state.focus();
return false;
}
if (frmfeedback.zip.value.length == 0){
alert("Please enter the ZIP/Postal code");
frmfeedback.zip.focus();
return false;
}
selcountry = document.frmfeedback.country;
if (selcountry.options[selcountry.selectedIndex].value == "") {
alert('Please choose a country');
var msg='document.frmfeedback.country.selectedIndex="0"'
eval(msg)
frmfeedback.country.focus();
return false;
}
if (frmfeedback.phone.value.length == 0) {
alert("Please enter your phone number.");
frmfeedback.phone.focus();
return false;
}
if (frmfeedback.email.value.length == 0) {
alert("The E-Mail field is empty.\nPlease enter your E-Mail address.");
frmfeedback.email.focus();
return false;
}

if (frmfeedback.email.value.indexOf ('@',0) == -1 ){
alert("The E-Mail field contains an invalid Email Format.\nPlease enter your correct E-Mail address.");
frmfeedback.email.focus();
return false;
}
selhearus = document.frmfeedback.hearus;
if (selhearus.options[selhearus.selectedIndex].value == "") {
alert('Please choose a value- how did you hear about us');
var msg='document.frmfeedback.hearus.selectedIndex="0"'
eval(msg)
frmfeedback.hearus.focus();
return false;
}
submitted=1;
document.frmfeedback.submit();
location.replace('thanks.html');
}

else {
alert('The form has already successfully been submitted.');
return false;
}
location.replace('thanks.html');
}
</script>

</head>
<table width="100%" cellspacing="0" cellpadding="0" border="0" bgcolor="#F5F5F5">
<form name="frmfeedback" action="mailto:me@my.com?subject=Request for more information on Engineering" enctype="text/plain" method="POST">

<tr><td valign="middle" align="right"><A CLASS="MBlack">First Name: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="firstname" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Last Name: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="lastname" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Company/Institution: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="company" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Address1: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="address1" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Address2: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="address2" size="24" maxlength="75"></a></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">City: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="city" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">State/Province/Region: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="state" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">ZIP/Postal Code: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="zip" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Country: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack">
<select name="country">
<OPTION VALUE="">Please select one</OPTION>
<OPTION VALUE="USA">United States of America</OPTION>
<OPTION VALUE="UK">United Kingdom</OPTION>
<OPTION VALUE="Australia">Australia</OPTION>
</select>
</a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Phone Number: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="phone" size="24" maxlength="25"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">E-mail Address: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="text" name="email" size="24" maxlength="75"></a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">How did you hear about us: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack">
<select name="hearus">
<option value="">Please select one</option>
<option value="web">Web site</option>
<option value="conf">Conference/Exhibit</option>
<option value="mail">Direct mail</option>
<option value="search">Search engine (please state which one)</option>
<option value="other">Other (please explain)</option>
</select>
</a><font color="red"><b>*</b></font></td></tr>
<tr><td valign="middle" align="right"><A CLASS="MBlack">Reference/Source: </a></td><td valign="top" width="15"><img src="images/sp.gif" border="0" width="15" height="1"></td><td valign="top"><A CLASS="MBlack"><input type="textbox" name="explanation" size="24" maxlength="100"></a></td></tr>
<tr><td colspan="2">&nbsp; </td><td valign="top" align="middle"><input type="button" value="submit" onclick="Validator(frmfeedback)"></td></tr>
</form>
</table>
</body>
</html>