I sent myself a Track/Waypoint and I never received it.

After sending a GPX track share you should have a return email almost instantly. If you do not receive it, the track you are trying to send may be to large. We recommend trying to share it again.

If this does not work please use iTunes Drag & Drop to import the track to your computer.

To use Drag & Drop connect your iPhone or iPad to your computer, launch iTunes and select your device in the left pane. Select the Apps tab at the top, then scroll down the page until you see the File Sharing section. Select MotionX-GPS. Drag the GPX files you would like to import from the iTunes window to your desktop. Drag & Drop is also a great feature for backing up your waypoints and tracks from time to time.

We have a tutorial online showing step-by-step instructions here.