That Rick guy is
an idiot. Or at least, I've never heard of
him before, but he sure comes across like one on that web page.
E.g., he spouts that qmail is "characterised by bizarrely wrong
design" because DJB insists that qmail "binary packages must install
all files including libraries, binaries, and configuration files
within /var/qmail". Except, that has nothing to do with the design of
qmail at all... I've never looked at the qmail code myself, maybe it
really is poorly designed - but that Rick's guys statement has pretty
much zero relevance to answering the question of whether it is or not.
Very poorly reasoned.
Varshavchik's Courier MTA
complaints about qmail,
that Jon pointed out above, make a lot more sense.
FYI, Debian users may want to grab
qmail, daemontools, djbdns, etc. packages. Unfortunately his
documentation and discussion is so terse as to make unix man pages
seem encyclopedic, but his packages seem to install fine, and the very
limited use I've put them to so far hasn't turned up any problems.