diff --git a/DakotaSender/App.config b/DakotaSender/App.config
index a45c0d022..75ab64d7d 100644
--- a/DakotaSender/App.config
+++ b/DakotaSender/App.config
@@ -17,5 +17,11 @@
 		<add key="ProcessWaitForExitMs" value="10000" />
 		<add key="LogPath" value="C:\GkvAbrechnung\Sender\log.txt" />
     <add key="GkvSecretKey" value="DfDGNGn72PKfSYxSUsmRdzuBtpR9novewlmYU3gsjiFgSkaZZeylUXlbO42cWNqiKgLdMUFtWUNZT962F1raQDR7HGUzCNYsFeC" />
+    <add key="SendMailModuleSmtpServer" value="mail.ownsoft.de" />
+    <add key="SendMailModuleGkvEnabled" value="true" />
+    <add key="SendMailModuleGkvSmtpUser" value="bewoplaner.support@ownsoft.de" />
+    <add key="SendMailModuleGkvSmtpPassword" value="JJVjJntw2yaRDAxInotF" />
+    <add key="SendMailModuleGkvSender" value="noreply@bewoplaner.de" />
+    <add key="SendMailModuleGkvReceiver" value="dakota.exchange@ownsoft.de" />
 	</appSettings>
 </configuration>
\ No newline at end of file
diff --git a/DakotaSender/Program.cs b/DakotaSender/Program.cs
index 9978933ef..d25c17e80 100644
--- a/DakotaSender/Program.cs
+++ b/DakotaSender/Program.cs
@@ -1,5 +1,6 @@
 using BS.Shared;
 using BS.Shared.AppSender;
+using BS.Shared.Core;
 using BS.Shared.DataContracts;
 using BS.Shared.DataContracts.GkvAbrechnung;
 using BS.Shared.Exceptions;
@@ -46,7 +47,7 @@ namespace DakotaSender
 			}
 			catch (Exception e)
 			{
-				PrintException(e);
+				HandleException(e, null);
 
 				if (is_dakota_running)
 				{
@@ -99,7 +100,12 @@ namespace DakotaSender
 			Print($"Verarbeite Datei: {file.SourceNutzdatendatei.Name}");
 			PrintLine($"(T:{file.Tenant}, U:{file.ApplicationUserOid}, P:{file.ProtokollOid}, D:{file.Datenannahmestelle})");
 		}
-		internal static void PrintException(Exception e) => PrintLine(e.ToString());
+		internal static void HandleException(Exception e, string tenant) 
+		{
+			MailUtils.SendGkvModuleErrorMail("GkvSender Exception", e, tenant);
+
+			PrintLine(e.ToString()); 
+		}
 
 		static void CheckDakotaStatus()
 		{
@@ -158,6 +164,8 @@ namespace DakotaSender
 		}
 		static DakotaSystemFile ScanQueueFile(FileInfo auft)
 		{
+			string tenant = null;
+
 			try
 			{
 				var nutz_fullname = auft.FullName.Substring(0, auft.FullName.Length - 4);
@@ -172,7 +180,7 @@ namespace DakotaSender
 				PrintLine($"- {auft.FullName}");
 
 				var split = nutz.Name.Split('_');
-				var tenant = split[0];
+				tenant = split[0];
 				var app_oid = long.Parse(split[1]);
 				var p_oid = long.Parse(split[2]);
 				var datenannahmestelle = split[3];
@@ -201,7 +209,7 @@ namespace DakotaSender
 			}
 			catch(Exception e)
 			{
-				PrintException(e);
+				HandleException(e, tenant);
 			}
 
 			return null;
@@ -409,11 +417,11 @@ namespace DakotaSender
 			}
 			catch (GkvException e)
 			{
-				PrintException(e);
+				HandleException(e, tenant);
 			}
 			catch (Exception e)
 			{
-				PrintException(e);
+				HandleException(e, tenant);
 			}
 
 			PrintSeperator();