On Fri, 8 Sep 2023 13:42:24 +0200 Guido Berhoerster <guido@berhoerster.name> wrote:
> This is caused by debian-edu-fai in the DEBIAN/40-misc script:
>
> ainsl -a /etc/mailname ${HOSTNAME}
>
> which appends to the file rather than overwriting it.
It is also not clear why ${HOSTNAME} is used here rather than
masking it behind postoffice.intern like on manual installs.
--
Guido Berhoerster