communication between codeigniter apps

[eluser]Thoer[/eluser]
[quote author="BorisK" date="1207251555"]You don't have to mix config files, tables and other components. That's what OOP is all about. Isolate your code from the rest and deal with one thing at a time. If your mailing list application has a lot of configuration options why not create a class for it, instantiate a class and set the config options via method calls. Or if a client needs to change a thing or too, use OO inheritance and overwrite certain features.[/quote]

As I said, it's going to be an open source project, kind of like phplist, but it's codeignited.
I also said that I would like to provide an interface so it would be easy for others to use my maillist application to send messages to their subscribers. I don't think you needed to tell me off...