I am having an issue referencing my namespance for sending an email in a contact codebehind event call.  I can't seem to get EmailHelper to work, keep getting a context error

 protected void Button1_Click(object sender, EventArgs e)
    {
        EmailHelper comm = new EmailHelper();
        comm.SendMailMessage(txtEmail.Text, txtNotes);
    }

The namespace Comm is supposed to handle all things communication related where the EmailHelper method SendMailMessage resides

using System.Net.Mail;

namespace Comm
{
    public class EmailHelper
    {
        public static void SendMailMessage(string email, string message)
        {
            MailMessage emessage = new MailMessage();
            emessage.From = new MailAddress(email);
            emessage.To.Add(new MailAddress("scott@hopefestaz.com"));
            emessage.Body = message;
            emessage.Priority = MailPriority.High;
            SmtpClient smtp = new SmtpClient();
            smtp.Send(emessage);
        }
    }

}