using System;

using System.Net.Mail;

using System.IO; 

​

public class Program

{

    public static void Main()

    {

        ParseAddress( "eos.rios@lumen.com" );

        ParseAddress( "support@google.edu" );

    }

    public static void ParseAddress ( string email )

    {

            try

            {               

                MailAddress m = new( email );

                string domain = Path.GetFileNameWithoutExtension(m.Host);

                string tld = Path.GetExtension(m.Host);

                Console.WriteLine( $"User: {m.User} Domain: {domain} TLD: {tld}" ) ;

            }

            catch ( Exception ex )

            {

                Console.WriteLine( ex.Message);

            }

    }

}