Auteur: Marc Sherman Date: À: exim-users Sujet: Re: [exim] Re: bounce messages and their potential misuse
Adam Funk wrote: >
> That provider adds header to every message with its abuse@ address and
> my (authenticated) userid for its service. That should be good
> enough.
If it doesn't prevent you from spoofing someone else's return address
and thus spamming them with bounces, it isn't.