I am researching on self hosted products which provides multi user platform so that we can host it on our server to charge users to give access to it.
It can be email marketing platform, where we can charge users to send emails etc.
So i am looking for any such product or script and i wish to make their list.
Does any one of you knows about any such product,then kindly share it
The product can be any like email marketing system, sales page builder, facebook app builder, twitter app or background builder or any other etc.