The source project of this merge request has been removed.
Revive d/postinst
In efe56824 (Remove all debconf bits for the port migration in 1.32-3., 2022-02-26) the entire postinst file was removed. This means that the current package doesn't install config files in /etc/postgrey, and it doesn't create a user to run as. Fix that by reviving the postinst script, after removing the debconf bits that are no longer needed.