Dear mainatainer, on today's automatic update of smartmontools (7.4-2 to 7.4-3),
I got this message:

    Setting up smartmontools (7.4-3) ...
    Installing new version of config file /etc/smartmontools/run.d/10mail ...
    /var/lib/smartmontools/drivedb/drivedb.h 7.3/5528 is already up to date (NOT VERIFIED)

Not sure if the second message is ok, but it still stands out and sounds as if
something is not right and maybe some action is needed? I. e., there may
possibly be some problem within the post-installation script or maybe the
message produced could be clarified (so as to make it more actionable if that's
necessary or, on the contrary, tone it down).

Best wishes
Tomaxuser

The "NOT VERIFIED" could be safely ignored. It is likely the output of:
   update-smart-drivedb --install
which is the same as:
   update-smart-drivedb --no-verify --file
/usr/share/smartmontools/drivedb.h

"NOT VERIFIED" means that no signature is checked for this "download".
This is misleading in the --install case as the packaged file should be
sane.

I will address this in a future smartmontools version.

A note to package maintainers:
The -q (--quiet) option suppresses this info message. Error messages
would still occur.

Fixed upstream:
https://github.com/smartmontools/smartmontools/commit/91fe3383de8b