Postfix Queue Scheduler
This is the beginning of documentation for the clever queue
manager scheduling algorithm by Patrik Rak. For a long time, this
code was made available under the name "nqmgr(8)" (new queue manager),
as an optional module. As of Postfix 2.1 this is the default queue
manager, which is always called "
qmgr(8)". The old queue manager will
for some time will be available under the name of "