>>>>> On Fri, 14 Mar 2025 17:05:32 +0000, Leo Butler <leo.but...@umanitoba.ca> >>>>> said: >> Yes. But those people would have set `user-mail-address' to something >> valid.
Leo> I guess you must mean syntactically valid, because my Leo> `user-mail-address' is a syntactically valid but bogus email address. Then you have an upstream MTA that doesnʼt do sender validation. Thatʼs rare these days. Robert --