Currently I use a maildrop script that checks the score given to the email by SA and if it reaches a certain number or greater it gets sent to a different mailbox.
My question is could you do that instead in SA local.cf
Others have pointed out that maildrop or procmail might be better.
However, I felt I should at least point out that it is *impossible* to do this with SA...
SA is just a piped message filter, it's not a delivery agent. It has no concept of mailboxes, or mail delivery. It doesn't even have access to the message envelope, so it doesn't always know who a message is being delivered to (unless it can guess from the headers). It can no more replace your maildrop script than it can replace your MTA.
SA's capabilities are strictly limited to editing the message. It cannot (on it's own) delete, redirect, bounce or whatever else you might want to do to alter message delivery, because it has no access to the delivery envelope. All SA can do is rewrite the headers and body, or use a return code from it's execution, and let other tools alter delivery based on that.
While this is a bit of a limit on SA's capabilities, there's tons of tools (like procmail) which do delivery filtering very well. Adding delivery to SA is re-inventing the wheel for the sole purpose of creating a "kitchen sink" application. Leaving it out keeps SA simple and lets the developers focus on doing spam filtering well, not wasting time globing on a bad rewrite of procmail.
Leave the "kitchen sink" approach to discount windows "business suite" applications and infomercial kitchen gadgets. I'd rather have a tool that does one job well, instead of a tool that does 50 jobs poorly. (It slices, it dices, it makes julienne fries, it even makes great coleslaw and fresh salsa! all for three easy payments of just $9.99!)
