Prices are based on volume. It isn't very fancy, but the prices are low. Price is determined by the number of monthly messages. Prices vary by the number of users. There are also 2 more options.
Price depends on service level and message volume.
If you are new to mailing lists or don't want to spend a lot of time and energy learning how to manage one, this may be the service for you. ListBot Free is a web-based mailing list management system. Members can subscribe right at your Web site. Get free message archives, collect demographic information from subscribers, allow members to manage their own subscriptions, and more. With ListBot Gold there are no ads on your messages and you can customize demographics questions and import existing lists.