Automatische Regel innerhalb eines Öffentlichen Ordners

string strSearchSubject = "Bestellungen";
string strMailReceivedFor = "einkauf@domain.local";
string strMailTo = "bestellungen@domain.local";

namespace Test.Agent.Mailumleitung
{
    using System;
    using System.IO;
    using System.Text;
    using System.Diagnostics;
    using System.Net;
    using System.Net.Security;
    using System.Security.Cryptography.X509Certificates;
    using System.Collections.Generic;
    using Microsoft.Exchange.Data.Transport;
    using Microsoft.Exchange.Data.Transport.Smtp;
    using Microsoft.Exchange.Data.Transport.Email;
    using Microsoft.Exchange.Data.Transport.Routing;
    using Microsoft.Exchange.Data.TextConverters;
 
    public sealed class MailumleitungFactory : RoutingAgentFactory
    {

        public override RoutingAgent CreateAgent(SmtpServer server)
        {
            return new UmleitungService();
        }
    }

    public class UmleitungService : RoutingAgent
    {

		string strSearchSubject = "Bestellungen";  
		string strMailReceivedFor = "einkauf@domain.local";  
		string strMailTo = "bestellungen@domain.local";  
        
		public UmleitungService()
        {
            this.OnSubmittedMessage += new SubmittedMessageEventHandler(this.onSubmittedMessageHandler);
        }

     
        public void onSubmittedMessageHandler(SubmittedMessageEventSource source, QueuedMessageEventArgs eodArgs)
        {
            try
            {
				if (eodArgs.MailItem.Recipients.Count == 1)
                {
					if ((eodArgs.MailItem.Message.Subject == strSearchSubject) && (eodArgs.MailItem.Recipients.Address.ToString() == strMailReceivedFor))
					{
						LogMessage("MailUmleitung", "Leite Bestell E-Mail um an anderen Ordner # Message-ID: " + eodArgs.MailItem.Message.MessageId);  
						eodArgs.MailItem.Recipients.Clear();
						eodArgs.MailItem.Message.To.Clear();
						eodArgs.MailItem.Recipients.Add(new RoutingAddress(strMailTo));
						eodArgs.MailItem.Message.To.Add(new EmailRecipient("Bestellungen", strMailTo));  
					}
				}
           
            }
            catch (Exception ex)
            {
                LogMessage("OnSubmittedMessage",  
                     String.Format("EXCEPTION: Type={0}, Message='{1}'",  
                         ex.GetType().FullName, ex.Message));
            }

        }

        public void LogMessage(string methodName, string message)
        {
            try
            {
                StringBuilder traceMessage = new StringBuilder();
                traceMessage.Append(System.DateTime.Now.ToString("s"));  
                traceMessage.Append("|");  
                traceMessage.Append(methodName);
                traceMessage.Append("|");  
                traceMessage.Append(message);
                traceMessage.Append("\r\n");  

                Trace.WriteLine(traceMessage.ToString());
            }
            catch
            {
                throw;
            }
        }
   
    }
}