Just a note for those of you running the 4.2.0 version: There is a memory leak in the hobbitd_alert module (the one doing the e-mail or script alerts), so that each time a message is sent out it will leak memory. Over time, this can become quite a lot.

A patch is available now: http://www.hswn.dk/hobbitsw/patches/hobbitd_alert-memleak.patch

Regards, Henrik