I successfully set up the EmailReporting tool, thanks for the good README and nice web-based configuration.
One thing I'd like to know is whether you think it might be possible to do away with the need to schedule the mail 'pull', perhap by using the postfix 'alias' feature to handle incoming email on an as-received basis, rather than having the overhead of polling an IMAP/POP server every five minutes. Both the 'mailing lists' and 'autoreply' features of Postfix look like they could be handy.
This would allow for much faster discussion of bugs (no 5 minute delay) plus I presume would consume less server resources. AFAICT one needs to write a script then that parses the incoming message as by RFC822/MIME etc, and once you've done that you're back to what normally happens with bug_report_mail.php, except no IMAP connection is required, and no crontab entry is needed.
This would have implications for the current EmailReporting in that the 'mailbox settings' would need rethinking for this alternative incoming message route.