Arnt Gulbrandsen wrote:
Hallam-Baker, Phillip writes:
If there is an authorization mechanism in place at the receiver end
you can still take the benefit of accreditation even though
you might
not be able guarantee that you were able to list out every
one of your
legitimate edge email servers.
I don't understand.
Suppose I'm a customer at a big ISP with 20 outgoing edge
servers, 19 of which are listed. Doesn't that mean that for
every mail I send, there's a 5% chance that it isn't
accredited, so big ugly dialog boxes will apear at the
recipient's screen?
That would rather hollow out the benefits of accreditation,
in my view.
There's no question that mail coming from those unlisted servers can't
be accredited. But there is still benefit in getting the other 19
listed and accrediting mail from them. Right now, there's an "all or
nothing" requirement for listing your outbound servers. "All" is
certainly the goal, but "some" is better than "none."