On Mon, 2009-07-13 at 17:19 +0200, Matus UHLAR - fantomas wrote:
> > On Fri, 3 Jul 2009, RW wrote:
> > > I understand that Spamhaus doesn't recommend this, because dynamic IP
> > > addresses can be reassigned from a spambot to another user, but I added
> > > my own rule it does seem to work. In my mail it hits about 9% of my
> > > spam, with zero false-positives.
>
> On 13.07.09 14:22, Tony Finch wrote:
> > You will get false positives from senders that are using remote message
> > submission, and from some webmail users if their server puts the webmail
> > client IP address in the message headers.
>
> agreed, although, some kind of authentication should be done in either case,
> which should prevent the rules from hitting, but many ISPs and ESPs don';t
> push auth informations to Received: headers...
>
Do the RFC's state that they need to?
