DelayedNotifier.DelayTimeSpanInSeconds

DelayedNotifier.DelayTimeSpanInSeconds - Max Time Allowed is 300 seconds (5 mins), would be great to have the ability to set the Max Time Allowed to something like 3600 seconds (1 hr) since some customers have internet that comes and goes therefore we get multiple emails a day from the same customer over and over as the pop offline, then online, then offline, etc.  Thanks!