WPMU Dashboard for me

Hello WPMU Dev,

My clients each have their own servers and databases from which their Wordpress websites are hosted.

I need the following plugins a plugin just like WPMU Dashboard where I can send messages and advertising.

Having gone through your plugins they all seem to only work on a multi-site network, not a network of databases.

Guessing this would be a RSS fed from my support website to the clients one.

Can you please advise.

Kind regards,
Yusef