I have a few suggestions for the notification volunteers receive reminding them of their upcoming need. 

First, a link for cancelling their registration would be helpful, as I find volunteers have a hard time finding where to unregister. 

The address to the location would be great. I tried putting the {{need_address}} link in, but since it is not an option on the right-hand side, the template key does not work. 

I would also appreciate being able to send out a different automated email for different opportunities, so I can include things like, "what to bring," "what to wear," etc. I know it is all in the opportunity description when they sign up, but having this in multiple places would be great. 

I have attached a screenshot of an email I received from another organization I am volunteering with, which I found to be well formatted. I have also attached an image of where the "cancel registration" link takes you.