* Chris Edwards <chris@???> [2004-01-30 17:03]: > Its simply an over-complicated form of whitelisting.
IMHO not. Whitelisting happens at the receiver side whereas
SPF gives this kind of control back to the sender.
> In the real world, a significant proportion of bona-fide mail is sent by
> SMTP clients that could never be "designated senders" for the envelope
> sender domain they use.
Then this sender domain will publish no SPF records at all or
"suitable" SPF records.
BTW: I find this topic (SPF) kinda offtopic for the exim-users
list as long as we're not directly discussing the integration of
SPF into Exim. Therefor, I'm setting the Reply-To Header to me.