how to add textbox in the mail body?

I am using asp.net and C#.

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 mai开发者_如何学运维l. i tried to add the input tag in the mail body, but i am able to see on [ ](two square brackets).

Can anyone tell me how to do this?

I wouldn't do this. Like other people said: this is impossible at best.

Think of the vast variety of email clients nowadays and the Spam community actively trying to break hell loose on your computer each day. Basic HTML is allowed in email, images (if not embedded) are blocked, Javascript is not allowed.

For your own sake, try to redefine this requirement to be input on a webpage with a link in the welcome email. If you continue to find a solution to this, you'll end up pulling your hair out.

Guess this is impossible.

AFAIK, HTML email is rendered at the client using a parser, not a fully functional web client. So I don't know email clients which will allow you to do this.

More information about HTML e-mails could be found here.