...having found your service by chance, we've been completely happy and pretty surprised actually. You offer a lot of features, with a very reasonable & logical rate system. ...How much your service will help is possibly beyond your understanding, but I'm sure you've heard that from other people using your service.
Your support group is so responsive and professional. I really do appreciate all you do for your customers!!
Your customer service is 100X better than the other e-mail providers.