We use Foscam's, FI8910W. Bought a pair on Amazon years ago for $100, and recently bought another for $60. They are rated for indoor use but work quite well even in 20 below zero weather outdoors - as long as they are under shelter outside as they probably wouldn't tolerate rain or snow all that well. I know Foscam does make the outdoor cameras but most are not pan/tilt/zoom. If you don't need the ability to turn the camera, might be worth looking at.
As stated earlier, they can be configured to send an email on motion detection. In practice, the farther away from the camera, the fewer pictures they'll send. I have ours set to 9 in order to catch motion about 80 feet away. They also can be configured to be accessed remotely but again as stated, you would need to open a port on your router (using NAT or port forwarding).
Oh, and they are pan/tilt, remotely movable. No zoom, but they also have infrared. The negative is that any light changes (clouds over the sun, then back to sun) results in a motion detect. We've had days when we received 150 emails with pictures of our place with cloud shadows. You can, however, configure a schedule when the cameras will be off. The newest firmware also does sound detection.
First time setup requires a computer to plug in wired, then you can configure wireless. You also need to know how to configure the email services that it will send the pictures.
All in all, semi-difficult to set up, but once set up it's easy to access.