[Pkg-exim4-users] Catchall for system users

[Ross Boylan]

I'd like all mail to system users to go to root, which is then forwarded
to me.  The inspiration was the discovery that some system accounts were
getting actual mail, and I hadn't noticed.  /etc/alias does not list all
system users, though a fair number are in there and set to root.

307768 has discussion of this, but the example there fails addresses and
involves resequencing some of the default files.  On the other hand, I
do want to capture even the real-* addresses.

So how does this router look?

250_rb_catch_system (before the real-* router):

catch_system_uids:
   driver = redirect
   domains = +local_domains
   user = ! root
   local_part_prefix = real-
   local_part_prefix_optional = true
   check_local_user
   condition = ${if or{{<{$local_user_uid}{1000}}{>{$local_user_uid}{29999}}}}
   data = root
-- 
Ross Boylan                                      wk:  (415) 514-8146
185 Berry St #5700                               ross at biostat.ucsf.edu
Dept of Epidemiology and Biostatistics           fax: (415) 514-8150
University of California, San Francisco
San Francisco, CA 94107-1739                     hm:  (415) 550-1062