Wietse Venema:
> Jiri Vitek:
> > Does someone have any idea how reach my targets: rewrite subject of
> > undelivered message with the original one?
> >
> > I can write script which will do the modification. But i don't know how
> > get these messages to this script.
> >
> > I have to do it on postfix, because mailboxes are on another server...
>
> You could use an external content filter, by using multiple Postfix
> instances (instead of Postfix's built-in content filter which does
> not filter bounces):
>
> postfix1 -> filter -> postfix2
>
> Multi-instance support is described in
> http://www.postfix.org/MULTI_INSTANCE_README.html, which even has
> a content filter as a use case. Unfortunately this feature used to
> be broken on some Linux distros.
In fact, what is shown above as postfix2 could be your down-stream
message store server.
Wietse
