Greg Stark <stark@mit.edu> writes:
> I understand how SPF affects @postgresql.org addresses but I was under
> the impression that it was no help for mailing list traffic since it's
> being relayed so the ip address isn't going to match the records for
> the sending domain anyways.
No, I think you're confusing it with DKIM. SPF checks to see whether
the sending machine is an authorized IP address for the domain of the
envelope FROM address --- which'd be the list itself. For example,
the whine I'm getting about this message is
Received-SPF: none (sss.pgh.pa.us: domain of postgresql.org does not provide an SPF record) client-ip=217.196.149.56;
envelope-from=sss.pgh.pa.us@postgresql.org;helo=malur.postgresql.org;
The original sender having been stark@mit.edu doesn't enter into it.
regards, tom lane