Sorry – there is minimal documentation on this site. However, if you go to talks.cam you will find excellent documentation which more or less applies to this site too.
The “less” above refers to a number of changes made to the system. One is that the system blocks email to any address that does not end in bham.ac.uk. Another change is obviously authentication. In the Cambridge system you can authenticate using “Raven”, their central authentication system. It would be good to link this to ADF authentication but time and skill has prevented this so far!