I hate to sound pessimistic but... The VAX/VMS MAILER always sends rejection mail to the FROM field. This is a real pain as you get a bunch of those whenever you mail to LINKFAIL, and the list owners are not notified and cannot remove the faulting addresses (not that it changes anything - I never could understand whether those "Error opening file, invalid device name -IDEV OPENOUT%blabla" meant "no such local user" or "coke poured in the CPU"). Anyway this situation exists since years with those VAX mailers. Considering the number of sites that use it (almost 100% of VAX/VMS sites), a fix would be most welcome. And still nothing has been done. Now if you expect the same mailer maintainers to implement something as complex (relatively speaking) as an Errors-To feature, which is furthermore NOT part of any official standard, then I think you are being definitely unrealistic :-) Eric