During the Jabber chat, which is viewable at
http://www.xmpp.org/ietf-logs/marid(_at_)ietf(_dot_)xmpp(_dot_)org/2004-06-28.html
We agreed to explore the scenarios in which using an SPF
query against the HELO domain leads to problems due to
overloading.
Problem scenarios should start out with:
HELO xxx
MAIL FROM:<yyy>
They should go on to describe how CSV views the situation,
how SPF-against-HELO views the situation, and how the SPF
story is problematic in a way the CSV story is not.
We should leave aside for now questions of whether the SPF
lookup is significantly "heavier-weight" than the CSV
lookup.
thanks
meng