Hi Andreas,
> Von: "Andreas Metzler via Exim-users" <exim-users@???>
> On 2020-03-17 Lukas Haase via Exim-users <exim-users@???> wrote:
> > Hi,
>
> > I am running Debian + exim + dkimproxy for more than 10 years without
> [...]
> > This setup worked flawlessly since 2009 (and was upgraded over
> > multiple Debian versions). Recently I upgraded to Debian 10 (buster;
> > exim 4.89, dkimproxy 1.4.1)
> [...]
>
> This information seems to be wrong, buster ships a much more recent exim
> release.
>
> Version (Code name) Exim version
> 8 (Jessie) 4.84
> 9 (Stretch) 4.89
> 10 (Buster) 4.92
Sorry for that, I made a mistake here. I upgraded from jessie to stretch. Not to buster.
PRDR has introduced in stretch (and did not exist in jessie yet).
Thanks,
Luke