For some of the smtpd restrictions I would like to merely tag a message instead of outright reject it. It would be either delivered as usual with the tagging in place for the client or user agent to check for, or be used to deliver the mail to a special folder. If the tagging is done by adding "+whatever" to the recipient address, that would work for me. Or adding any new header can work. Or adding a string in some distinctive place would probably work. Does Postfix have any way to (be configured to) do this?
-- sHiFt HaPpEnS!
