Bug#1051461: nullmailer is not configured correctly

[Guido Berhoerster <guido@berhoerster.name>]

Package: debian-edu-fai
Version: 2023.09.07.1

debian-edu-fai installs currently prefers nullmailer over exim4. However,
both the mailname and remote are not configured correctly so that mail
cannot be delivered.

/etc/mailname contains:

postoffice.intern
ws02.intern

This should be just a single line with "postoffice.intern". Not sure where
that comes from, the nullmailer postinst should just write shared/mailname
into it.

/etc/nullmailer/remotes contains:

mail.intern

This hostname does not exist, it should be "postoffice.intern". I
haven't fully figured out where it comes from, the debconf setting is
empty, so it might be some default value:

debconf-get-selections --install | grep nullmailer
nullmailer→·····nullmailer/adminaddr→···string
nullmailer→·····nullmailer/defaultdomain→·······string→·intern
nullmailer→·····nullmailer/relayhost→···string
nullmailer→·····shared/mailname→string→·postoffice.intern

-- 
Guido Berhoerster