MW is currently configured to require the user to either manually or automatically delete and/or bounce all emails from blacklisted senders.
I would rather have the option to revisit the blacklist and elect to have certain emails automatically deleted and/or bounced. This should not be a right-click option to avoid inadvertent selection.
The blacklist would be primarily listed or categorized in order of action severity:
A) automatic deletion and bounce
B) automatic deletion
C) proposed deletion & bounce held for review and manual action
D) proposed deletion held for review and manual action
Bounce messages generally don't work for the run-of -the-mill spammer, as they use forged emails that would otherwise generate bounce message errors.
However, it can be effective for individuals and legitimate organizations that might otherwise persistently send or forward crap mails. This would reduce the number of bounced bounce messages.