I defined unattended-upgrade configuration in /etc/apt/apt.conf.d/50unattended-upgrades file. It works fine, I receive an email notification when an upgrade is applied.
The notificatoin email shows this subject:
unattended-upgrades result for debian.example.com: SUCCESS.
Where does that debian.example.com comes from? I could not find it in the configuration file. How could I add my VPS name instead? (I am using Exim4, and /etc/email-addresses is empty, is this related?)
Thanks a lot!