forwarding should use a selected mailserver

[Alex Potter]

On Wednesday 02 December 2009 11:31:26 Thorsten Schnebeck wrote:
> Hi,
> 
> I would like to solve a very special problem. Some Kolab-user forward their
>  mail to an external exchange server. This external domain has 3 mails
>  servers in its mx record with different metrics. Due to some very strange
>  relay rules the the first and second attempt to forward a mail does
>  time-out. Only the last server is the one that accepts incoming mails.
>  There is no chance to change this messy setup. Its part of their fail-back
>  strategy. I would like to reduce the time for forwarding to this mail
>  domain and drop sending according to mx metrics and want to send mails to
>  anyuser at forwarddomain.net directly to the 3rd mailserver.
> 
> Question:
> Is there  somewhere a magic postfix config where I can define the
>  mailserver of a named mail domain?

If I have understood you correctly, you should add a line like

example.com        smtp:required_mx_.example.com

to /kolab/etc/kolab/templates/transport.template

and run kolabconf, that should do as you require.

HTH

Alex