http://www.ornl.gov/lists/mailing-lists/qmail/2007/11/msg00063.html and http://www.ornl.gov/lists/mailing-lists/qmail/2007/11/msg00062.html

http://video.google.com/videoplay?docid=-3147768955127254412&hl=en

djb: "[...] i have decided to put all of my future and [...] past software into the public domain" http://cr.yp.to/qmail/dist.html