factor qmail-lspawn account lookups: qmail-acct, running as qmailz
move usermap to qmail-acct (with usermap compiler)
maybe give qmail-acct power to disable program deliveries in qmail-alias
rewrite INTERNALS
use more strerr-based messages
in version 1.00 and following, allow free distribution
do some serious coverage testing, preferably under Purify, without alloc slop
rewrite everything from scratch
separate compatibility project: pine+maildir
separate project: bouncebot
