From: Russ Allbery (rra@stanford.edu)
Date: Thu Aug 01 2002 - 10:55:50 CDT
Bill Davidsen <davidsen@prodigy.com> writes:
> On Wed, 31 Jul 2002, Russ Allbery wrote:
>> No. That section does not support your contention. For example, the
>> %-escaped form of Newsgroups is entirely compliant with that section.
> The problem is that it doesn't properly address the whole header issue,
> the "%" in a "To:" address is parsed by many mailers, such that
> joe%nosuch.com@real.com
> -is treated as-
> @real.com:joe@nosuch.com
> and the message is relayed to nosuch.com via the mailer at real.com. Or
> more likely "relaying denied" at real.com these days.
We talked this over on USEFOR and don't think it will be a problem. Those
sites implementing %-hack only do it for addresses that they consider to
be local, which means that the only sites that would possibly do this are
the moderation relay sites. That's a fairly small set of sites, and I
think we can just ask them all to turn this off (if they haven't already,
which they probably have since this used to be a huge spam relaying hole).
-- Russ Allbery (rra@stanford.edu) <http://www.eyrie.org/~eagle/>