[Sociable]

Sorry stuartbe I disagree on this for a few reasons.

First is that simply flagging e-mails does nothing at all to reduce the traffic which is a far bigger problem than the anoyance for individual users important though that is.

Second if mail is refused the sender would be adivised his mail was rejected and why so appeals can be made.

But the main reason is that a clear message has to be sent to the spammers so they know there is no longer any point in sending spam as that at the end of the day is the desired effect of the filter.