Richard A. DeMattia wrote:
David, thank you very kindly - the recipe now seems to work as I expected it to do.
You're welcome.
Do you have any comment on the overall premise? Am I doing the right thing to just drop non-subscriber mail on the floor?
Probably not. Subscribers may post from other addresses without telling you. It may be a better idea to shunt mail from unrecognized addresses to a holding folder that you review with your own eyes.