I haven't figured out how to do this but it must be possible.

I have the "Restrict posting privilege to list members?" option set to 'Yes'.

I get several emails a day from one list alone where the messages as held because they are from address that never bothered to subscribe. I always reject those posts.

I would like to automatically reject any non-member posts and send out a reject email automatically, without my intervention. Then I would like to get a report of the persistent rejects (they must not read their email) so that I can add them to the spam list.

How do other mail list admins deal with this?

Edward Elhauge | "This above all, to thine own self be true, <ee@uncanny.net> | And it must follow as the night the day Uncanny Inc. | Thou canst not then be false to any man." San Francisco | -- William Shakespeare, Hamlet