how to add textbox in the mail body?
<p>I am using asp.net and C#.</p>

<p>I have a requirement in which i need to add one textbox in the mail body.
After the user registration, i need to send a welcome mail. i tried to add the input tag in the mail body, but i am able to see on [ ](two square brackets).</p>

<p>Can anyone tell me how to do this?</p>
