It'll take a lot of management though wont it - do you really want an email sent to you every time motion is triggered?
I guess you just have to remember to switch it on and off everytime you leave the flat...just like a burgular alarm
I hope you don't have a cat/dog/lizard.....
Any sort of management can be scripted
If my phone or my wife's phone is connected to the wifi, motion activated emails are stopped.
A script is run every 2 minutes to check to see whether we are connected or not.
Once the Pi detects that we are not connected, it also sends me an email to tell me that motion alerting was started, that way if I don't get the email when I leave the house, I know that something has gone awry.