I have changed the spam.whitelist.rules and spam.blacklist.rules files' locations in order to easily apply custom rules.
Rule files themselves are working, MS is reading the files and applying the rules properly. But when I try to view the rule set from MSFE main page's drop-down menu, it shows a different file. e.g this blacklist rule file:
To: *@* and From: *@spammer.tld yes
# Example: (allow from foo@bar.com)
# From: foo@bar.com yes
FromOrTo: default no
While the actual file is completely different.
It is a minor issue and not effecting anything actually...
MSFE just lists the files located in the /usr/mailscanner/etc/rules/ directory for that feature, so if you change the location of the rules file in the MailScanner configuration, MSFE won't find it.