If you are trying to be vigilant (without going overboard and being suspicious of everything that comes your way) there are a few key characteristics of risky emails to keep in mind. (lawyerist.com)
From my point of view it's all comics — it's all one form that has a shared set of key characteristics in the way it operates. (du9.org)
The graphic below summarizes a few key characteristics of these local programs. (mdrc.org)