I must say that I was somewhat discouraged at the last meeting as to whether Drupal can do what I want.
The reason I got into Drupal was because it is supposed to be the most flexible and extensible.
I want to be able to collect names and send newsletters to my clients and others interested in my work. It seems like such a simple request for a CMS. The recommendation was to use a paid service like Mail Chimp. I was shocked that I would have to use a paid service for such a simple need. I want to send out to a list and target the list by zip code or city/state so that if I visit that area of the country I can alert people that I'm coming. Or maybe I want to send out a specialized newsletter to a subset of the list with special interests. Sometimes I may want to send to the whole list.
I was researching costs. Another book author that I know of started with a small list of a few thousand, such as I have, but as it expanded, he is now paying over $1000.00 per month for emailing through a service. This is not what I want to do. I want to have something like "Mail Chimp" or "Constant Contact" built in to my site. This is what a web site and email is for -- to keep in touch and keep people aware of your organization.
I'm sure that companies of any significance don't use Mail Chimp, they have these features built into their online presence. Question is -- Can Drupal do it?