OK, it is now, on the 24-hour clock, 20:01 (8:01PM). I set my 930L to stop emailing at 19:16 (7:16PM) and have received no emails since 19:15 where I did get emails, at least the scheduled email every 5 minutes (300 seconds) or so if there were no motion. The 932L had a time limit up to 18:30 (6:30PM). No emails from that unit since 18:15 (it's set to send scheduled emails every 10 minutes). The 930L has part of the TV in it's view and I have also walked around within it's view as well as within the 932L's view.
What this tells me is that when Motion Detection is enabled in the Motion Detection page and emailing is enabled there will be emails. The emails will come Always, on a Schedule, or as specified in the Motion Detection option portion of the Mail screen.
If no motion is detected during the scheduled time you will at least get a "scheduled email" when the E-Mail Interval time has expired. That is every 300 seconds, 600 seconds, or however many seconds are set.
I can only assume this will be the same in the case of FTP as the FTP options are very similar. Unfortunately I do not have an FTP setup to test this (yet).