Bugzilla, RT3 and Trac

[Paul Michael Reilly]

I am looking for an issue tracking tool running on Fedora, preferably
open source, that will accept incoming email replies to a comment on a
particular issue as a new comment for that issue.  I think Bugzilla
can do it but I haven't figured out yet how to make it work.  Does
anyone with experience using rt3 or trac know if either of these tools
supports such strong email integration?

Thanks,

-pmr