[Mailman-Users] ARC, was non-subscribers getting through--email address in "Real Name"
Stephen J. Turnbull
turnbull.stephen.fw at u.tsukuba.ac.jp
Wed Jul 25 06:11:10 EDT 2018
John Levine writes:
> As I said a few messages ago, if lists did more stringent tests on
> incoming mail, a lot of this complexity could be avoided,
I don't understand this. If lists got a pass, every spam would grow
RFC 2369 header fields. No? So ISTM the received chain needs to be
authenticated for the recipient to trust any last-hop sender, list or
> but they don't so it can't.
Origin checks are generally very useful and effective in my
experience. But I don't see how authentication can be avoided.
More information about the Mailman-Users