rem: int KMFilterActionForward::process(KMMessage* aMsg, bool& )
add: int KMFilterActionExec::process(KMMessage* , bool& )
context: int KMFilterActionForward::process(KMMessage* aMsg, bool& /*stop*/){  KMMessage* msg;  if (mTo.isEmpty()) return TRUE;  msg = aMsg->createForward();  msg->setTo(mTo);  if (!kernel->msgSender()->send(msg))  {    debug("KMFilterActionForward: could not forward message (sending failed)");    return 1; // error: couldn't send  }  return 0;}