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
