Yes, it is:
-rwsr-xr-x 1 root daemon 18220 Feb 9 11:44 wrapper
It very occasionally seems to work ok, but in general, it gives
me an error that the UID and GID (which it specifies as 'guest's)
don't have write permissions. It also says in the top of the
error 'received from guest@localhost', whereas messages from
outside are received from 'majordomo@localhost.'
Also, I noticed that some internal messages don't get a fully
qualified address when sent to other internal addresses (i.e.
if a user sends mail to majordomo from machine 'foobar', their
email is listed as user@foobar, not firstname.lastname@example.org).
Majordomo doesn't seem to accept that as a valid email address,
although it would accept just 'user' with no @blahblahblah).
Any way to alter how picky it is about that?
As far as external messaging goes, this software ROCKS, btw. :P