Or...

Bimjo — Thu, 18 Jan 2001 16:26:12 +0000

For a low tech approach- if you have autoresponder capability for your site you can have your form send an autoresponse to the email addy provided.

If it bounces, it wasn't a good one.

My forms pages explain that if they want a response from me they have to provide a valid email addy. My forms forward my visitors to a "Thank You" page that informs them that they should get the autoresponder message, and what the probable reason for not getting one is.

I figure if they aren't serious enough to provide a valid email addy, I don't need to worry about them not hearing from me.

KLWong — Wed, 17 Jan 2001 23:07:20 +0000

Here's the Javascript I use, picked up from somewhere on the web

var re = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
		
if (re.test(EmailAddr) == false) {
   alert("Not a valid e-mail address");
   return false;
} else {
   return true;
}

Basically it compares the given email address to a "regular expression" which requires something with letters and/or digits followed by a @ and something else with letters and/or digits which contains at least one period.

Of course, this only tests the format, and someone could still enter a non-existent address...

Justin S — Wed, 17 Jan 2001 22:55:48 +0000

Moving to the HTML & JavaScript Help Forum...