However, after recently reading the excellent article at macdevcenter.com by James Duncan Davidson to set up sendmail in Jaguar, I eventually got sendmail up and running (after a bit of finagling things). My G4 is now able to send and receive email directly, independently of my ISP. Woohoo!
However, I was disappointed to discover that Bugzilla still did not seem to be able to send me any email, even after all this. Curious, I checked the sendmail log at /var -> log -> mail.log after submitting a request to Bugzilla to change my password. Bugzilla said the email was sent, but there was no entry in the mail log! So poking around a bit, I discovered that Bugzilla expects sendmail to reside in /usr/lib; on OS X, sendmail actually resides in /usr/sbin. So I figured Bugzilla probably just couldn't find the process. So, on a hunch ... a little symbolic link magic:
sudo ln -s /usr/sbin/sendmail /usr/libAnd voila, Bugzilla sends me email now!

