I'm most interested in the messaging module to serve a conduit so I don't have to publish member email addresses to other members. In other words, a way for members to contact other members... so that they can then take their communication to e-mail if they so choose.  It also allows members to contact other members without exposing the e-mail address of the member being contacted.

First, I love the fact that users get notification of a new message via e-mail.

I'm also concerned that messages will add up on storage constraints and also ultimately slow down the site.  I can't seem to find an option to:

-Limit the number of messages that can be archived (e.g. 10)
-Limit the number of messages that can be received/unread (e.g. automatically delete oldest message after 10 are received).
-Automatically delete messages after 30 days
etc.

Most smaller sites simply can't afford the storage and bandwith requirements of being a "facebook" social replacement where we store absolutely everything on our own server.

Is there a setting somewhere to accomplish these goals?  Or should I request an enhancement?