kmail: use default transport for message redirect. This resolves issue #54.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

kmail/kmsender.cpp

@@ -482,6 +482,9 @@ void KMSender::doSendMsg()
   if ( msgTransport.isEmpty() ) {
     msgTransport = mCurrentMsg->headerField("X-KMail-Transport");
   }
+  if ( msgTransport.isEmpty() ) {
+    msgTransport = GlobalSettings::self()->defaultTransport();
+  }
   if ( msgTransport.isEmpty() ) {
     const TQStringList sl = KMTransportInfo::availableTransports();
     if (!sl.empty()) msgTransport = sl.front();