On Thursday, August 13, 2009 at 19:16 CEST,
[email protected] wrote:
> We are reconfiguring our mail systems.
> We already have a mailfilter computer , which will be replaced.
>
> To test the new mailfiltering system, I would like to duplicate all
> incoming mail so as to forward it :
>
> 1/ to the old mailfilter computer ( where it will be distributed )
> 2/ to the new mailfiltering system ( where after the mailfiltring
> process, the mail will be discarded )
You need to split each recipient in two, either via virtual aliasing
(don't make the domains virtual alias domains, virtual aliases affect
all messages) or recipient_bcc_maps. Virtual alias example:
[email protected] [email protected],[email protected]
If it isn't okay for the new server to accept messages addressed to
newserver.example.com you can use generic rewriting to rewrite it back
to example.com.
This is a FAQ, so you will find additional information in the list
archives.
--
Magnus Bäck
[email protected]
