I have some unique needs that I'm wondering if this plugin could be customized to meet. I have a network of sites. I would like each site in the network to have a subscriber list, and be able to send messages to that list if they wish. However, I would also like the network admin to have the ability to create emails that can be sent out from all of the network sites, from their respective owners. Also, I would like the template to be intelligent enough to pull info from the website such as site name, url and admin name. Is any of this possible? Essentially it will be a service where someone can sign up for a site, and along with it there will be monthly emails delivered to their subscribers. Thanks!