El kartero is a fast massive e-mailer that allows you to create a template with your message and automatically send highly-visual, personally customized emails from a database.
Create an HTML template with your graphics, walk through a wizard to set up some database properties (such as what field contains your client name) and let El Kartero do the rest!. The result: Highly visual HTML emails, individuated to your contacts in a snap.

The license of this software is Free Trial Software, the price is $79.99, you can free download and get a free trial.