Smtp.NET Using Authentication

[C#]
            public void SendEmail()
            {
                 SmtpServer oSmtpDotNet = new SmtpServer();
             
                 // Set the remote server name.  If left blank, "localhost" is used.
                 oSmtpDotNet.ServerAddress = "mail.domain.com";
                 
                 // Set the log authentication login AND password
                 oSmtpDotNet.AuthLogin = "username";
                 oSmtpDotNet.AuthPassword = "secret";
                 
                 // Message Addressing
                 oSmtpDotNet.ToAddress = "to@domain.com";
                 oSmtpDotNet.FromAddress = "from@domain.com";
             
                 // Set the message subject and body
                 oSmtpDotNet.Body = "This is the message";
                 oSmtpDotNet.Subject = "Routine email";
                  
                 ReturnCodes nRC = oSmtpDotNet.Send();
                 if ( nRC != ReturnCodes.SUCCESS )
                 {
                      Console.WriteLine("Error #"+nRC+" occurred.");
                      Console.WriteLine(oSmtpDotNet.LastError);
                      return;
                 }
             
                 // Success!
                 Console.WriteLine("Success!");
            }
            
            

[VB]
            Public Function SendEmail() As Integer
                 Dim oSmtpDotNet As New SmtpServer()
                 Dim nRC As ReturnCodes
            
                 ' Set the remote server name.  If left blank, "localhost" is used.
                 oSmtpDotNet.ServerAddress = "mail.domain.com"
                 
                 ' Set the log authentication login AND password
                 oSmtpDotNet.AuthLogin = "username"
                 oSmtpDotNet.AuthPassword = "secret"
            
                 ' Message Addressing
                 oSmtpDotNet.FromAddress = "from@domain.com"
                 oSmtpDotNet.ToAddress = "to@domain.com"
            
                 ' Set the message subject and body
                 oSmtpDotNet.Subject = "Routine email"
                 oSmtpDotNet.Body = "This is a briefing of the financials"
            
                 ' Send the message.  Get the return code and store it in the variable
                 ' nRC.  Then check nRC for success or failure
                 nRC = oSmtpDotNet.Send()
                 If (nRC <> ReturnCodes.SUCCESS) Then
                     ' A problem occurred.
                     ' Write out the last error encountered
                     Console.WriteLine(oSmtpDotNet.LastError)
                     Exit Function
                 End If
            
                 ' Success!
                 Console.WriteLine("Message Sent!")
            End Function