ASP.NET MVC Email Validation Attribute using Regular Expression

You want MVC 2 / 3 to automatically validate user-submitted email addresses? Stick the following class in your project:

using System.ComponentModel.DataAnnotations;

public class EmailValidationAttribute: RegularExpressionAttribute
{
    public EmailValidationAttribute() : base(@"^([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*[\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+@((((([a-zA-Z0-9]{1}[a-zA-Z0-9\-]{0,62}[a-zA-Z0-9]{1})|[a-zA-Z])\.)+[a-zA-Z]{2,6})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)$") {  }
}

Then you can use it on your model / model-metadata like this:

[EmailValidation(ErrorMessage="Not a valid Email Address")]
public string Email { get; set; }

NOTE: The regex is STRONG AND GOODLY because I found a definitive source. Scott Gu has a similar solution but for once THE MIGHTY GU HAS LET US DOWN. :p

1. His regex is incomplete and wrong (doesn't allow upper-case first part to the address)
2. His blogpost comments are disabled so I can't let him know about it.

NAUGHTY GU!