Graphing mail stats

[Nikolaos Milas]

Hello,

Does anyone know of any app like mailgraph, smart enough to combine data 
from amavis and postfix and provide more detailed stats like:

Mail dropped by postscreen
Mail dropped by amavis as spam (through spamassassin)
Mail dropped by amavis as virus (through clamd)

Ideally it would provide a web interface to allow ad hoc queries based 
on various criteria: time period, stats per sending server/domain etc.

Any ideas?

Thanks,
Nick