This is the exact same script we use here at SoftwareWholesalers.net to send messages to our entire mailing list!
Folks, this script not only WORKS, it works extremely well! And if that is not good enough, consider this! NO MySQL database to mess with, no need to CHMOD or set permissions and no need to set paths! Simply upload this single file PHP script to your web server and begin mailing!!
And for those that are still squemish about installing scripts, we are including a complete video, walking you through the install and the sending of your first mailing!!
Furthermore, you can distribute the same exact stand-alone video to your customers when you market this script! You just cannot beat this people!