changing send_message to return more information

lib/msf/core/exploit/smtp_deliver.rb

@@ -143,16 +143,19 @@ module Exploit::Remote::SMTPDeliver
 
     # Avoid sending tons of data and killing the connection if the server
     # didn't like us.
+    send_status = false
     if not resp or not resp[0,3] == '354'
       print_error("Server refused our mail")
     else
-      raw_send_recv("#{data}\r\n.\r\n", nsock)
+      send_status = raw_send_recv("#{data}\r\n.\r\n", nsock)
     end
 
     if not already_connected
       print_verbose("Closing the connection...")
       disconnect(nsock)
     end
+
+    send_status
   end
 
   def disconnect(nsock=self.sock)