We have seven InstarHD cameras and get a lot of alarms when we move on our own property.
So in order to disable the notifications (the notification for the rules are mobile only) we would have to disable the cameras (or certain cameras) but this would also disable the recording (front side of the house etc.).
Our workaround currently is that we have each rule duplicated, one version with notifications, one version without.
Two IFTTT webhook widgets (enable/disable alarm) make http requests which make rmi calls for enabling/disabling the rules with notification.
It should be easy to add an option (in the 2 apps, in the remote viewer and a new python rmi call) to enable/disable all kinds of notifications (mobile, ifttt, mail).
The idea is almost the same but more "phone specific":
topic13120
