On Sat, Apr 19, 2025 at 01:31:28PM +0200, Dmitriy Alekseev wrote:
> I do not rewrite any headers and have 0 intention to do so as it break
> existing dkim and arc signatures. No modification except envelopes needed.
Therefore, avoid 'recipient_canonical_maps', and if you need envelope
sender rewrites set "sender_canonical_classes" as suggested.
> > > Using sender_canonical_maps is better when you send mail to the
> > > internet, e.g. forward it - so mail recveived from internet will not
> > > have sender rewritten, but any mail forwarded from your system with
> > > remote sender address will.
> >
> > There is no dedicated equivaelnt mechanism to rewrite just envelope
> > senders on input, but the combination of:
> >
> > sender_canonical_classes = envelope_sender
> > sender_canonical_maps = ...
> >
> > is close enough. For header rewriting, use "canonical_maps", which
> > consistently rewrites all headers.
--
Viktor.
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