Don't make changes in the camera setup when client wants motion detection.
I don't have a problem with paying for motion control.
Just program the app that by paiement for motion detection the motion control button off the app just switches on or off the motion control of the camera , nothing less nothing more.
Thats what other Foscam app's do too.
Why changing mailing data into the camera setup to pass through by your servers.
I don't understand that kind off working process.