easy problem but never figure it out - subject issue

Hiya!

Im using HTML. When you click on submit button after you filled all fields, the email will prompt but I dont like the subject "post from firefox". How
can I change my own words on subject?? I know it is an easy problem but I never figure it out.

Your help much appreciated.

Thanks
Natz

<form action="mailto:youremail@gmail.com" method="post" enctype="text/plain">

<p style="padding-left:-20px;">
<label>Name:
<input id="txtName" type="text" name="NAME" size="30" />
</label>

</p>
<p>
<label>Surname:
<input id="txtSurname" type="text" name="SURNAME" size="30" />
</label>

</p>
<p>
<label>E-mail:
<input id="txtEmail" type="text" name="EMAIL" size="30" />
</label>

</p>

</from>

<input type="submit" value="Send Email"/>
<input type= "reset" value="Clear" />

I will never encourage sending mail using the action=mailto:
there are so many things assumed and that can lead to security risks etc..I recommend you send mail using a server-side language instead...to actually answer your question...read this (http://support.microsoft.com/kb/279460)