Plan 9 from User Space's /usr/local/plan9/mail/ 

-rw-r--r--  1 rsc  users  210 Mar 17  2010 README
drwxr-xr-x  2 rsc  users  512 Mar 17  2010 lib/
drwxr-xr-x  2 rsc  users  512 Mar 17  2010 queue/

Space Glenda

Copyright © 2005 Lucent Technologies, Russ Cox, MIT.
See license for details.