Package: courier-imap Version: 5.0.5+1.0.5-2 Severity: important Dear Maintainer,
Upgrading to courier-imap 5.0.5+1.0.5-2 on systems that use the traditional sysvinit is broken. I have an older server which has been upgraded over the years to Buster and has managed to avoid being switch to use systemd as it's init system. Upgrading Courier from 4.17.2+0.76.3-5+b1 to 5.0.5+1.0.5-2 failed with errors in the postinst script. For some reason, running invoke-rc.d to restart the services through dpkg failed where running the exact same commands outside of it worked fine. I was able to complete the upgrade by disabling both services using update-rc.d however this isn't a particularly nice upgrade experience. I understand that non-systemd systems are a historical curiosity these days, but I'd appreciate it if you'd investigate why your package fails to configure on them. Thanks, Julian Calaby
