email valitor | regex | c#

using System;
using System.Text.RegularExpressions;

namespace avstn.mail
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Title = "Email validtor";

            string pattern = @"^([a-z0-9\.\-]{3,20})\@([a-z]{1,10})\.([a-z]{2,10})$";

            Regex reg = new Regex(pattern, RegexOptions.ExplicitCapture);

            string email;

            do
            {
                email = Console.ReadLine();

                if (email == string.Empty)
                    continue;

                Console.WriteLine(string.Format("Validaty check: {0} \n\n", reg.IsMatch(email)));
            }
            while (email != "/q");
        }
    }
}