===== How to create a mail template =====
  * Go to Setup => mail => templates
  * Press "New"
  * select which organisation has the right to use this template
  * Enter a subject (just like sending a regular e-mail)
  * Enter the mesage
    * You can use the "Available fields" to personalize the mesage
  * Enter a e-mailadres for the sender (at "from")
  * if desired test or preview
    * The test option sends a mesage to the "to(test)" adres just like it's a patient
    * The prevriew generates the e-mail on screen
  * Press 'Save'