This script has undergone some serious revisions since the earlier reviews were posted. There is now support for HTML mail, confirmation e-mails sent to subscribers, confirmations sent for unsubscribers to the list, and much much more. (Go to www.codingclick.com and look for the Beta versions 3 or later)
All of these options are easily configurable using the script's very easy to use interface. Your users can choose between HTML and Text messages when they subscribe, and MyMail then allows you to choose separate e-mails to both groups when you are sending your group e-mails.
Set up was also a breeze, and the best part of it all is that there is a VERY active support forum available at their site. The people there are always available to answer your questions, usually in a matter of hours. The forums also house a number of customizations that have been created by the script's many users, most of which are easily added to your MyMail installation.
Finally, Peter, the script's main designer, is now working on a new and improved version, which should be available soon, and will add even more options to this already overpowered (free!) program.
Truly folks, this is a great program, it's hard to find a better-supported, totally free program like this.