Juha, thanks for the info it was a great starting place. Courier apparently uses courier/etc/aliases/system to create aliases. I have edited my system file and run makealiases and restarted all of my mail server processes (authdaemon, courier, pop3d, imapd, esmtpd, and their ssl counterparts) and am still receiving errors in my maillog. Also apparently I never noticed that my postmaster mail is not getting delivered. I am including the errors and my system file for review. TIA for any more help.

System config:

RH 7.2 (kernel 2.4.17) installed to: /var/courier

error from maillog:

Jul 8 23:54:07 Death courierd: newmsg,id=0000DC14.3D2A5E5E.00002A44 Jul 8 23:54:07 Death courierd: id=0000DC14.3D2A5E5E.00002A44,from=<que...@apocalypse.us>,addr=<kevin.queen@a pocalypse.us>: 550 User unknown. Jul 8 23:54:07 Death courierd: id=0000DC14.3D2A5E5E.00002A44,from=<que...@apocalypse.us>,addr=<kevin.queen@a pocalypse.us>,status: failure Jul 8 23:54:07 Death courierd: completed,id=0000DC14.3D2A5E5E.00002A44 Jul 8 23:54:07 Death courierd: started,id=0000DC14.3D2A5E5E.00002A44,from=<>,module=dsn,host=,addr=<queen@a pocalypse.us> Jul 8 23:54:07 Death courierd: Waiting. shutdown time=none, wakeup time=none, queuedelivering=1, inprogress=1

system (aliases):

# Copyright 1998 - 1999 Double Precision, Inc. See COPYING for # distribution information. # # Mail alias definition. # # Courier does not deliver to root, therefore forward root mail to postmaster

root: postmaster

# Also send mailer-daemon's mail to postmaster

mailer-daemon: postmaster

MAILER-DAEMON: postmaster

uucp: postmaster

# You must specify a non-privileged account to receive postmaster mail. # The postmaster CANNOT be root. Until you specify a valid postmaster # alias below, all postmaster mail will be bitbucketed.

postmaster: queen

# Additional aliases may be defined here, or create other files in # local/config/aliases directory. # # After making any changes, run the makealiases script to compile the # alias database.

arlene: dolphin420