jQuery Validation makes it simple to validate an email address:

$(someForm).validate({

    rules: {

        SomeField: {

            required: true,

            email: true,

            remote: {

                type: POST,

                url: CheckEmail

            }

        }

    }

});

This makes it so that SomeField is required, must be formatted as an e-mail address and also performs a remote call to the CheckEmail action (check for duplicates).

I like to make things as simple as possible so I can do a lot of the same stuff with Data Annotations:

public class RegisterModel {

    [Required]

    [Remote(CheckEmail, Home, HttpMethod=POST)]

    public string SomeField { get; set; }

}

Does ASP.net MVC 3 / Data Annotations have a built-in/simple way to validate to make sure the e-mail address is in the correct format?

I would like it to produce unobtrusive javascript if possible.