As a growing business, you may also be looking for a CRM solution, and you'll find that the more advanced email marketing services have begun to crossover into CRM. It makes sense: Both types of software deal with managing and communicating with customers. A handful of these services are one-stop shops, either offering both email marketing and CRM out of the box or as add-on services.
The takeaway here is that if you are to use personalization as an email strategy, do so in a meaningful way. It takes little knowledge or relationship to place someone’s name in your greeting. It shows far greater care to send personalized email that is specific to a recipient’s needs and history. Again, an example from my inbox, this email from Rdio dispenses with the formalities and simply provides an update on music I actually listen to.