Thank you so much for your quick reply. I knew I made the right call when I suggested my client switch from iContact, whose system is difficult to use and who were unable to help me after over an hour online with their tech support.
Your service sounds too good to be true. I'm with Topica now and they're okay but I can't send my subscribers to a custom "thank you for subscribing" webpage once they subscribe.
We are very happy with the service. Its really the best value out there right now. Period.