How novice end users, neophytes can set things up so that suspected spam or likely spam or definitely spam type messages go to another secondary mail file for later examination in case there are any false positives?...

[Don Saklad]

How do novice end users, neophytes set things up so that
suspected spam or likely spam or definitely spam type messages go
to another secondary mail file for later examination in case
there are any false positives?...