I am am looking for a server based application (Unix/Linux/PHP) that will allow users to download a file after entering an email address, then subscribe to a newsletter by ticking a check-box. The addresses should then be captured into a mailing list, or at least presented in such a way that they could be imported/exported/copied & pasted to a mailing list or MySQL database. The origin of the file should not be visible to the user.
Does anyone know of any open-source, free or cheap software that would do this? Preferably not a shopping cart.
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