On Mon, 9 Feb 1998, Torsten Curdt wrote:
> I guess we have a similar problem! I have a local net temporary
> connected to
> the internet. I like all outgoing (and only outgoing!) messages to be
> rewritten
> with the original ISP's mail adresses! So a there's always a correct
> from-line!
> The delivery in the LAN is supposed be untouched!
>
> I've tried and read a lot ... But don't really have an idea how!
> Does anyone have ?
Maybe (this is just off the top of my head) you could play games in an
expansion string by making use of $sender_host_address. Something like
*@some.domain ${if match{$sender_host_address}{^123\\.456} \
{ what you want to rewrite }fail} fF
Note that after the regex match, $1 etc will refer to what matched, but
you can use $local_part and $domain to refer to the original address.
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