Overview

HTML code

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>mailto: email form</title>
</head>
<body>
<form action="mailto:TO_EMAIL_HERE" method="get" enctype="text/plain">
    <!-- either use the hidden form field here,or use the other input field farther down -->
    <input type="hidden" name="subject" value="some subject you want">
    <input type="hidden" name="CC" value="SOME_EMAIL_HERE">
    <input type="hidden" name="BCC" value="SOME_EMAIL_HERE">
    <table border="0" cellspacing="0" cellpadding="4">
        <tbody>
            <tr>
                <th align="right">Name:</th>
                <td align="left"><input type="text" name="name" size="20"></td>
            </tr>
            <tr>
                <th align="right">Email(from):</th>
                <td align="left"><input type="text" name="email" size="20" maxlength="65"></td>
            </tr>
            <tr>
                <th align="right">Subject:</th>
                <td align="left"><input type="text" name="subject" size="20" maxlength="65"></td>
            </tr>
            <tr>
                <th align="right">Comment:</th>
                <!-- don't leave any whitespace in teh textarea or it will show up in your message -->
                <td align="left"><textarea name="body" cols="40" wrap="physical" rows="4"></textarea></td>
            </tr>
            <tr>
                <th align="right"></th>
                <td align="left"><input type="submit"><input type="reset"></td>
            </tr>
        </tbody>
    </table>
</form>
</body>
</html>
articles
posts a nice basic form and some tricks to making it work