External links (or Outbound links) are not tracked by Google Analytics, although it can be helpful to have data about the amount of clicks on a certain link. Since the beginning of Fork CMS 3 we track outbound links by adding an event tracker on the link. In our newest release we improved the tracking by adding support for mailto-links and internal anchors.
The script is based on an example of Lars Corneliussen. It provides a nicer overview of all tracked links in your Google Analytics.
Example usage: Use a secondary dimension in Google Analytics to see on which page mailto links were clicked.
Developers can review the changes in the pull-request on GitHub.