I see in System Settings -> Virtualmin Configuration -> Spam filtering options where these options exist:
Add senders of spam sent to spamtrap to blacklist? Global, Domain level, No
Add senders of non-spam sent to hamtrap to whitelist? Global, Domain level, No
However, I suspect that I do not want to enable either of these because they are system wide and will affect all domains. Further, at least on the primary domain, we have a pretty varied userbase and "one man's spam is another man's ham".
Is there a way to enable this functionality on a per-user basis?
I would like it if when a user forwards a message to spamtrap that the original sender is blacklisted in their own blacklist and similar for hamtrap.
Thanks in advance,