"I am a big fan of qmail. I honestly think it's the best MTA
around, even if it has a few issues. Well, what doesn't?
"Since I manage a few small and large installations, I think
it's only fair that I document what those issues seem to me, and
what solutions I've found.
"One thing about qmail is that its queue, for sake of
efficiency, is not as easy to manipulate as, for example,
sendmail's.
"So, I've found some tools, and written some more, to help
manage, control and manipulate qmail's message queue..."