Unattended‑Upgrade MailReport Mode Change in Ubuntu 24.04 LTS
Goal Configure unattended‑upgrade to send email alerts only when security updates are applied, while still allowing automatic reboots. Constraints MailReport supports 'on-change', 'on-err', and 'always'. The default 'always' results in excessive emails. Automatic‑Reboot can trigger silent reboots that may not notify users via systemd‑logind. Unresolved Behav
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