Super simple email validation with javascript

Question

I\'m making a really simple email validation script that basically just checks the following

1. that the email isn\'t blank
2. the the email contains an @ s

Answer 1

Try:

function valid_email(email) {
   return email.match(/^([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*[\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+@((((([a-z0-9]{1}[a-z0-9\-]{0,62}[a-z0-9]{1})|[a-z])\.)+[a-z]{2,6})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)$/i);
}

That is the best available email validation regex, according to this article. I recommend using this, unless your goal is something really simple but not fully compatible.

Answer 2

If you want to check only for Business Emails then try this :

<script type="text/javascript">
$(document).ready(function(e){
     $('#sendReq').click(function(){ 
     var email = $('#emailAddress').val();
     var reg = /^([\w-\.]+@(?!gmail.com)(?!yahoo.com)(?!hotmail.com)(?!yahoo.co.in)(?!aol.com)(?!abc.com)(?!xyz.com)(?!pqr.com)(?!rediffmail.com)(?!live.com)(?!outlook.com)(?!me.com)(?!msn.com)(?!ymail.com)([\w-]+\.)+[\w-]{2,4})?$/;
      if (reg.test(email)){
     return 0;
     }
     else{
     alert('Please Enter Business Email Address');
     return false;
     }
     });
    });
</script>