On Sun, 30 Mar 2003, Suresh Ramasubramanian wrote:
> Nico Erfurth <masta@???> wrote:
> > On Sun, 30 Mar 2003, Suresh Ramasubramanian wrote:
> >
> >> 4) eliminate helo checks that cause false positives
> >
> > 4 == eleminate all helo-checks.
>
> No. Consider the fine example of an IP which is not one of yours sending
> you mail claiming it is a host in your domain. Like - some random korean IP
> connects to you and says "HELO perlgolf.de"
Wow, a spammer who tries to greet my host directly :)
But ok, you're right, I think some spam could be refused with a helo-check
(hosts pretending to be aol/yahoo/etc.).
But heuristic checks (helo-name has to match hostname) aren't an option.
Checks for the usual faked helo-names are ok.
