Global.flushMailQueue ()
send all mails contained in the application-wide mail queue

Sourcecode in Global/objectFunctions.js:
1:   function flushMailQueue() {
2:      if (app.data.mailQueue.length > 0) {
3:         app.debug("flushing mailQueue, sending " + app.data.mailQueue.length + " e-mail(s) ...");
4:         while (app.data.mailQueue.length) {
5:            var mail = app.data.mailQueue.pop();
6:            mail.send();
7:            if (mail.status > 0)
8:               app.debug("Error while sending e-mail, status = " + mail.status);
9:         }
10:     }
11:     return;
12:  }