Migrating spamassassin white/black list and body,subject & full rules to ISPConfig

Hello, I am migrating an old server where I have installed xmail with spamassassin. On this server I have some .cf files with blacklists, whitelist, and rules for subject, body, etc.

My question is if I can use these files on the new server with Ispconfig amavis (spamassassin).

If so, where can I place those .cf files
If not, how can I put a domain in the whitelist so I not have to repeat it in my clients' domains one by one?

Thank you for your cooperation.

 

I place those files on /etc/spamassassin like my older server.
When I restart amavis did spamassassin --lint and no problem.
I'll review and test to confirm that all is ok.
Thank you till.

 

I respected the SA configuration files that the ISPconfig installation did and I only copied my .cf files with the rules that I had worked on for years on the old server.
Everything is working well.
I prefer to keep recording the rule in those .cf files since I am used to editing them in text and they are also common rules for all domains.