I looked through your website, but I still have a couple of questions.
Your documentation says that you have SMTP servers. Is there a limit on the number of emails that can be sent or are they just counted against my bandwidth?
I'm wanting to do a newsletter and hope to have several subscribers. I don't want to do a discuss list. Would Mailman work for this? Also, can Mailman determine if a subscriber's mail can accept HTML or only plain text? Does Mailman do double opt-in?
I saw that you have a resellers program, but I didn't see anything about affiliates. Do you have an affiliate program?