brash wrote:
Myself and a few others have been throwing ideas around of paying a developer to write a module for XOOPS specifically to be able to mail out to very large user bases without killing the server. This is not a trivial task as the code must be very robust, efficient, scalable and secure. If you are interested let me know.
Have you looked at PHPlist? I have been thinking about integrating this as an XOOPS module for some time, but I know I won't get around to it. You could ask the author if he is interested in stripping out the bulk mailing code into a module for XOOPS, I am sure a fee would help ;)