John L wrote: >> This is the exact problem for PRA in the SIDF implementation. > Quite right. What would be the point in inventing yet another > authentication scheme that fails in all the same places that > SIDF and SPF do?
SPF has no problem with non-standard mailing list behaviour, it doesn't look at (2)822 header fields From / Sender / Resent-*. SSP looks at the header, unsurprisingly running into known PRA- difficulties. A public statement (SSP) about how From-addresses are used *must* be cumbersome for legit e-mail uses not under the control of the publisher (mailing lists, secy-at-shost, resend, multi-author above a limit decreed here, likely more). Not the same set of issues as for SPF, SPF "only" outlaws 1123 5.3.6(a) forwarding. SSP might end up with outlawing more mail features, and SSP can't claim that they were "always wrong". Frank _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
