What is the best FREE (open-source) (and/or simple to install) Subscriber List Manager for use on Godaddy's Hosting That Is Shared (Linux - Luxurious 4GH)

I've no real preference if this involves implementation lang anything goes (php, python, ...)

Any encounters?

Do and donts.

More Information: I am likely to be while using subscriber list in an effort to promote my kart/auto/talkabout racing occasions to my clients, most likely 300...500 customers.

I heard phplist is nice. Does anybody determine if you can do the installation on godaddy?