school filtering of student e-mail

[Barry Smoke]

I work for Bryant Public Schools, Bryant  AR.  We have been using qmail fo a while now, and love it!  We are contemplating adding student e-mail accounts to our mail server. We are going to use the courier imap, with a web based e-mail system.  We have several issues come up with this.  Here's a couple for the list.... 1. how do we filter content, and what do we filter?(is there a program....are there rules for words, catch phrases, content, url's, attachments...) 2. notification of abuse. ( How do we forward the bad stuff to the appropriate administrator?)   Any input is greatly appreciated.   Thanks, Barry Smoke Network Administrator Bryant Public Schools