I have a bunch of e-mail address saved up in my database from donators. However, I don't want to go through the whole double opt-in thing with Aweber. Is there a script or some other service i can use without going through that?
Double opt in is not always a bad thing though as if you get spam complaints isps could block your IP. There is also the can spam act where you get fines for sending out unsolicited emails. To answer your questions though, you can try phplist.. a free script.
I use aweber. In case you didn't know it you can go in and change the settings where you don't have to have a double opt-in