Does anyone know of a source for a double opt-in mailing list / newsletter subsystem? This is the style that's currently in vogue with privacy concerns, where a users opts to join, and then you send a confirmation message where they have to confirm their wish to join.
mailman!
see : http://www.list.org/
it's written in python. it's powerful, popular and has quite a few features.
Thank you, Philip. I'll check it out.
I also found a really on target answer by searching with google.com for "php newsletter opt*". That took me to hotscripts.com where there are some really good possibilities. --David
