Viktor Dukhovni via Postfix-users:
> On Wed, Jul 31, 2024 at 01:10:46PM -0400, Wietse Venema via Postfix-users
> wrote:
>
> > > > Now I tried to redirect mails from my private address sent to anybody
> > > > at charite.de to be redirected to someone else in the organisation,
> > > > like this:
> > > >
> > > > rxlf.hildebra...@gmail.com REDIRECT toscx.hrn...@charite.de
> >
> > Added to the text for REDIRECT actions:
> >
> > Note 2: a REDIRECT address is subject to canonicalization (add
> > missing domain) but NOT subject to canonical, masquerade, bcc,
> > or virtual alias mapping.
> >
> > Note the difference with automatic BCC recipients. The reason for
> > this difference is not obvious because it is purely technical.
> >
> > The excluded mappings are in the code path that generates ordinary
> > recipient records, and the REDIRECT address is not in an ordinary
> > recipient record.
> >
> > This could be fixed (reuse the code path) but it is a rare edge case.
> > It would open the possibiliy to redirect to multiple recipients.
>
> Address rewriting of course happens in cleanup, while REDIRECT actions
> are processed in qmgr(8), and is much simpler when it is just one
> explicit address.
>
> Making REDIRECT match na?ve user expectations, means new rewriting of
> REDIRECT in cleanup(8) potentially yielding multiple REDIRECT
> recipients. And new logic in qmgr(8) to handle multiple redirect
> recipients.
>
> And of course, we'd probably still want the last "REDIRECT" access(5)
> action to replace any prior redirects, rather than append to a list,
> which probably means buffering the REDIRECT recipient util EOM, and
> sending just that last one to cleanup(8) as one of the post-message
> envelope records.
>
> A non-trivial change, but perhaps something that most users would
> reasonably expect?
It's called 'technical debt' when a quick hack has non-obvious
limitations.
Wietse
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