Apt
Unattended upgrades
Email From
Add the following line in 50unattended-upgrades
Unattended-Upgrade::Sender "Unattended-upgrades Example <noreply@example.com>";
Automatic reboot
Uncomment the following lines in 50unattended-upgrades and change accordingly
Unattended-Upgrade::Automatic-Reboot "true";
Unattended-Upgrade::Automatic-Reboot-Time "02:00";