We need to define what an "area" is. It could be that Lindsay's understanding of area varies from ours.
Depending on hosting, there may be a SMTP server available for us. Not sure if this is the case with Amazon. Otherwise we will have to setup our own.
Estimate roughly 1.5 man hours per email notification type. Additional 11 man hours to setup and troubleshoot SMTP server.
This includes the following additions...