ratatouille:
> Peter <pe...@pajamian.dhs.org> schrieb am 23.08.20 um 16:10:19 Uhr:
>
> > On 23/08/20 2:16 am, Wietse Venema wrote:
> > >>
> > >> with postfix version 2.11.11?
> > >
> > > You are running some Frankenstein Postfix, perhaps with features
> > > backported by RHEL. Such backports are NOT part of the official
> > > Postfix release, and are NOT SUPPORTED.
> >
> > RHEL 7 has 2.10.1, RHEL 8 has 3.3.1. There is no release of RHEL that
> > comes with Postfix 2.11.11. Whatever he has it's not a stock RHEL Postfix.
>
> I installed 2.11.11 from
> http://repo.mailserver.guru/7/os/x86_64/repoview/index.html
> because it had features 2.10.1 did not have.
I downloaded the RPM and there is no SMTPUTF8 code in there.
More likely, the bounce was sent by a downstream Postfix server.
This means that replacing your Postfix 2.11.11 with one that supports
SMTPUTF8 will not prevent the bounce.
Solution: encode raw UTF8 in message headers.
Workaround: disable SMTPUTF8 on all servers that have SMTPUTF8
support. But that just moves the problem to a mail server on the
remote end.
Wietse
