Disable Personal Messaging

Hello- I'm wondering if there is a way to disable internal personal messaging among users. I'd rather they just put their emails in their listings and not email in the system.

Also, is there a way to hide their email addresses - similar to Craigslist?

Thank you!

[seymourjames +]

You can do quite a bit with user groups in the admin control panel. However for these two things, I actually make a minor modification to the template files so as to hide private messaging and display of emails. Its a few minutes work to do that.