Pkg exim4 users - Jan 2009 - Route only outgoing mails to smarthost

Hi,

I''m having a problem with my exim configuration. I''ll try to
explain what''s going on as good as I can.
Let''s call my server "exim.mydomain.com". There''s
also the domain''s standard mailserver ("mail.mydomain.com").
Both servers are supposed to handle mails to *@mydomain.com in a certain way. 
The "mail.mydomain.com" only handles mails to certain addresses (e.g.
a at mydomain.com) and routes everything else to my
"exim.mydomain.com".
My "exim.mydomain.com" only handles mails to some other addresses
(e.g. b at mydomain.com), every other address is supposed be rejected (e.g. c at
mydomain.com).
All outgoing mail is supposed to be routed to the mailserver (smarthost).

My config:

dc_eximconfig_configtype=''satellite''
dc_other_hostnames=''mydomain.com''
dc_local_interfaces=''''
dc_readhost=''mydomain.com ''
dc_relay_domains=''''
dc_minimaldns=''false''
dc_relay_nets=''''
dc_smarthost=''mail.mydomain.com''
CFILEMODE=''644''
dc_use_split_config=''true''
dc_hide_mailname=''true''
dc_mailname_in_oh=''true''
dc_localdelivery=''mail_spool''

It''s working quite well. I get the mails going to b at mydomain.com and
the mails to c at mydomain.com get an undeliverable message (#550 Unrouteable
address).
The problem appears when I try to send mails. Mails to other domains work fine.
But mails to a at mydomain.com can''t be routed.
>exim4 -bt a at mydomain.com
R: system_aliases for a at mydomain.com 
a@ mydomain.com is undeliverable:
  Unrouteable address

I''ve tried a few things to solve this, like setting mydomain.com as a
relay domain or changing the smarthost router to allow local_domain. With these
changes the mails to a at mydomain.com get routed, but in both cases the
incoming mails to c at mydomain.com will also be routed back to the smarthost
(causing a loop between my exim server and the smarthost, because none of them
wants to handle this address).

Is there some way to configure exim to route the outgoing mails to the
smarthost, but still reject (undeliverable) the incoming mails to c at
mydomain.com?

Thanks
Frank

Hi

First, I would change your dc_other_hostnames to :-

dc_other_hostnames=''exim.mydomain.com:mydomain.com''

Then run

invoke_rc.d exim4 restart

This will mean that your Exim will accept mail both to its FQDN as well 
as the domain.

Now in /etc/aliases make an entry

a: a at mail.mydomain.com

You should make similar arrangements on mail.mydomain.com such that it 
accepts mail for its FQDN as well as the domain, and set up an alias for 
b pointing to b at exim.mydomain.com

You can continue writing mails to a at mydomain.com and Exim will do the 
work of re-writing and delivering it to the user on mail.mydomain.com, 
likewise they should be able to address you at b at mydomain.com and have 
it delivered to you at b at exim.mydomain.com

Regards
Neil

fn_online at arcor.de wrote:
> Hi,
> 
> I''m having a problem with my exim configuration. I''ll try
to explain what''s going on as good as I can.
> Let''s call my server "exim.mydomain.com".
There''s also the domain''s standard mailserver
("mail.mydomain.com").
> Both servers are supposed to handle mails to *@mydomain.com in a certain
way.
> The "mail.mydomain.com" only handles mails to certain addresses
(e.g. a at mydomain.com) and routes everything else to my
"exim.mydomain.com".
> My "exim.mydomain.com" only handles mails to some other addresses
(e.g. b at mydomain.com), every other address is supposed be rejected (e.g. c at
mydomain.com).
> All outgoing mail is supposed to be routed to the mailserver (smarthost).
> 
> My config:
> 
> dc_eximconfig_configtype=''satellite''
> dc_other_hostnames=''mydomain.com''
> dc_local_interfaces=''''
> dc_readhost=''mydomain.com ''
> dc_relay_domains=''''
> dc_minimaldns=''false''
> dc_relay_nets=''''
> dc_smarthost=''mail.mydomain.com''
> CFILEMODE=''644''
> dc_use_split_config=''true''
> dc_hide_mailname=''true''
> dc_mailname_in_oh=''true''
> dc_localdelivery=''mail_spool''
> 
> It''s working quite well. I get the mails going to b at
mydomain.com and the mails to c at mydomain.com get an undeliverable message
(#550 Unrouteable address).
> The problem appears when I try to send mails. Mails to other domains work
fine. But mails to a at mydomain.com can''t be routed.
> 
>> exim4 -bt a at mydomain.com
> R: system_aliases for a at mydomain.com 
> a@ mydomain.com is undeliverable:
>   Unrouteable address
> 
> I''ve tried a few things to solve this, like setting mydomain.com
as a relay domain or changing the smarthost router to allow local_domain. With
these changes the mails to a at mydomain.com get routed, but in both cases the
incoming mails to c at mydomain.com will also be routed back to the smarthost
(causing a loop between my exim server and the smarthost, because none of them
wants to handle this address).
> 
> Is there some way to configure exim to route the outgoing mails to the
smarthost, but still reject (undeliverable) the incoming mails to c at
mydomain.com?
> 
> Thanks
> Frank
> 
> 
> _______________________________________________
> Pkg-exim4-users mailing list
> Pkg-exim4-users at lists.alioth.debian.org
> http://lists.alioth.debian.org/mailman/listinfo/pkg-exim4-users
> 
>
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