http://people.ee.ethz.ch/~dws/software/mailgraph/

--<cut>-- Mailgraph is a very simple mail statistics RRDtool frontend for Postfix that produces daily, weekly, monthly and yearly graphs of received/sent and bounced/rejected mail. --<cut>--

It doesn't do the level of abstraction I'd really like (graphing per Sender: header), but its fairly easy to extend to do that if I ever get around to it. ITMT its a rather useful general MTA performance and monitoring tool. Certainly it revealed me a few things about my mail systems I hadn't fully grokked before.

Demo site:

http://people.ee.ethz.ch/~dws/mailgraph/mailgraph.cgi

Note: If you use syslog-ng there's a very simple patch you'll need to make to the Parse:Syslog package to get it to properly read syslog-ng log entries.

-- J C Lawrence
---------(*) Satan, oscillate my metallic sonatas. claw@kanga.nu He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.