Das geht am besten über diese Komponente.
Installation über nuget:
Install-Package EmailValidation
Codebeispiel:
using System;
using EmailValidation;
namespace Example {
    public class Program
    {
        public static void Main ()
        {
            do {
                Console.Write ("Enter an email address: ");
                var input = Console.ReadLine ();
                if (input == null)
                    break;
                input = input.Trim ();
                Console.WriteLine ("{0} is {1}!", input, EmailValidator.Validate (input) ? "valid" : "invalid");
            } while (true);
            Console.WriteLine ();
        }
    }
}
Posted by Stephan Blaurock to Programming KB (2018-04-26 07:52)