On 10/25/2015 09:41 PM, Philip Homburg wrote: > In your letter dated 25 Oct 2015 20:24:55 -0000 you wrote: >>> No idea how flexible mailman is, but how hard would it be to write some >>> code that ... >> >> Instead of guessing, five seconds of googlage found this informative page: >> >> http://wiki.list.org/DEV/DMARC > > I guess this is a complex way of saying, no mailman doesn't do that? > >From what I read on that page, that is essentially what mailman does (at least as one of the options), but in a slightly less confrontational way (i.e. not From: 'bad mail config at sender', but simply From: 'replaced by list'). It even notes that it breaks reply-to and search, though it certainly doesn't make an exhaustive list of UI/client processing problems. Jelte