Acumbamail

I had heard a lot about Acumbamail and I was only awaiting the opportunity to snap it up if it returned to Appsumo. Didn't hesitate once I saw the email promotion, and I'd say that I have not been disappointed. The library of templates is one of the richest I have seen for products within its league (800+), while the ease of editing existing templates or customizing new ones is awesome. As I dig my heels in, I have nothing but admiration for the product.