hello, i was in a similar situation last year: i looked at Log::Log4Perl and can do quite a lot of things.

Finally i ended with Multiplexing log output: Log4perl of the poors in which you can find my best effort on multiplexing the log process.
Here the 'debuglevel' dispatch table is ordered in an incremental manner: you can modify to act in a different way to add a MAIL specification.
Take in count that the code is something experimental..

HtH
L*