Dear all,

I'm at the end of my knowledge what else might help to get this f... smtp connection running.

I run an DNN 4.4.0 installation on a virtual machine, w2k3 standard edition. The directory of the dnn portals are located on a second hard drive, which is compressed.

Additionally a sharepoint 3.0 service is running.

The local smtp service is up and running, allowing anonymous access as well as windows authentication a.s.o.

Configuring the Outlook Express on the same machine with the parameter: www.rill.at  as smtp server results into successfull email sendings.

I also can access an smtp server with outlook express at mail.xxxx.at smtp port 25, SSL, Authentication required, same as logging in mail server.

None of both can be  accessed by the DNN Portal, my smtp test always ends up with: Failure sending mail. Unable to connect to the remote server

I guess I've tried every combination with anonymous, basic and ntlm with ssl, w/o ssl a.s.o.

I'm looking forward to receiving a lot of helpful posts!

Thank you!

Thank you for the input,

telnet connected correctly, event viewer (I assume you're meaning the system integrated mmc) reports no errors on smtpsvc.

Also switching off the firewall at all doesn't change anything. (Outlook express on the same machine is always functioning properly)

so by now, no improvement!

That's the result of the log viewer

AssemblyVersion: 04.04.00
PortalID: 0
PortalName: My Website
UserID: 1
UserName: host
ActiveTabID: 16
ActiveTabName: Host Settings
RawURL: /Host/Host Settings/tabid/16/portalid/0/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://localhost/Host/Host%20Settings/tabid/16/portalid/0/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 36b61cb4-01db-421c-b15f-1af439035a31
InnerException: Unable to connect to the remote server
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Net.Sockets.Socket.DoConnect
StackTrace:
Message: System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: Eine bestehende Verbindung wurde softwaregesteuert durch den Hostcomputer abgebrochen at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message)
Source:
Server Name: VIRTUAL-WEB-01

The part in german translated: An existing connection was reset by host computer via software control.