how to remove entirely the opencsw packeges in order to reinstall them cleanly

[Marc Lobelle]

Dear All,

I'm using for many years a CSWcourier-imap server on OI-hipster 2016.4.

I wish now to reinstall it on a new computer. (running OI-hipster 
2020.4).  So, I installed pkgutil on the new server.

Apparently, everything went fine for installing CSWcourier-imap, but 
there were errors for CSWcourier-authlib. However the systems believes 
everything is OK, but I cannot enable the cswcourier-imap service.

I tried thus to remove everything and retry, but I am unable to remove 
the CSW packages with pkgutil -r: it says the packages are in use, 
although svcs does not show them.

How can I entirely remove these packages . I removed entirely /opt/csw, 
/var/opt/csw, /etc/opt/csw, but the system still thinks that the 
packages are there. What else do I have to remove to be able to 
reinstall the packages.

Thanks

Marc