Pkg exim4 users - Mar 2010 - string expansion problem

I''m having trouble getting a regular expression from
update-exim4.conf.conf to the real configuration.  I''d appreciate some
help.
dc_relay_domains=''! \\N^(vm-)?squeeze(00)?.kvm.lan\$\\N ; *.kvm.lan ;
*.biostat.ucsf.edu''
(on one line in original).  I''ve tried other variations.

When I do reload I get 
Reloading exim4 configuration files:/usr/sbin/update-exim4.conf: non-ascii value
<; !
^(vm-)?squeeze(00)?.kvm.lan\$
 ; *.kvm.lan ; *.biostat.ucsf.edu read from /etc/exim4/update-exim4.conf.conf,
sanitizing to <; !
^(vm-)?squeeze(00)?.kvm.lan\$
 ; *.kvm.lan ; *.biostat.ucsf.edu
 exim4.

config.autogenerated shows
MAIN_RELAY_TO_DOMAINS=<; ! ^(vm-)?squeeze(00)?.kvm.lan$ ; *.kvm.lan ;
*.biostat.ucsf.edu

and, when a message comes in, the log shows
2010-03-20 18:23:37 1Nt9tB-0002io-2Z <= ross at squeeze00.kvm.lan U=ross
P=local S=530 id=20100321012337.GA10454 at squeeze00.kvm.lan
2010-03-20 18:23:37 1Nt9tB-0002io-2Z failed to expand "!
^(vm-)?squeeze(00)?.kvm.lan$ : *.kvm.lan : *.biostat.ucsf.edu" while
checking a list: $ not followed by letter, digit, or {
2010-03-20 18:23:37 1Nt9tB-0002io-2Z == ross at vm-lenny00.kvm.lan
R=dnslookup_relay_to_domains defer (-1): domains check lookup or other defer
(I think that''s based on an earlier try with
dc_relay_domains=''! \N^(vm-)?squeeze(00)?.kvm.lan$\N : *.kvm.lan :
*.biostat.ucsf.edu''

Observations:
1. Some level of quoting removal is going on, since the string in
dc_relay_domains is not the same as in the config.autogenerated.
2. I don''t think macro expansion alters the string, but I''m
not sure.
3. I believe that 
domainlist relay_to_domains = ! \N^(vm-)?squeeze(00)?.kvm.lan$\N : *.kvm.lan :
*.biostat.ucsf.edu
will work to treat all kvm.lan domains except for self (vm-squeeze00.kvm.lan) as
relay to domains.
4. The main reason I''m bothering is that other machines in
relay_to_domains have private IP addresses, which the regular DNS router
rejects.

Thanks.
Ross Boylan

P.S.  I would appreciate being cc''d since I''m having trouble
getting
list mail right now.

On 2010-03-21 Ross Boylan <RossBoylan at stanfordalumni.org>
wrote:
> I''m having trouble getting a regular expression from
> update-exim4.conf.conf to the real configuration.  I''d appreciate
some
> help.
> dc_relay_domains=''! \\N^(vm-)?squeeze(00)?.kvm.lan\$\\N ;
*.kvm.lan ; *.biostat.ucsf.edu''
[...]
> Observations:
> 1. Some level of quoting removal is going on, since the string in
> dc_relay_domains is not the same as in the config.autogenerated.
Pretty please directly set MAIN_RELAY_TO_DOMAINS instead of throwing
the regex into update-exim4.conf.
> 2. I don''t think macro expansion alters the string, but
I''m not sure.
Yes, it shouldn''t do any un-quoting.
> 3. I believe that 
> domainlist relay_to_domains = ! \N^(vm-)?squeeze(00)?.kvm.lan$\N :
*.kvm.lan : *.biostat.ucsf.edu
> will work to treat all kvm.lan domains except for self
(vm-squeeze00.kvm.lan) as relay to domains.
[...]

Basically yes. Afaict the regex also matches e.g.
"vm-squeezezkvm.lan", you could throw in more backslashes.

cu andreas