On Wed, 2007-21-02 at 08:01 +1100, Charles Butcher wrote: > > If you really want to take this into account, use it as part of a > > scoring system (e.g. spamassassin) but not as a sole reason. > > > > > I spent a while running myself ragged dealing with legitimate mail from > big ISPs that had no PTR records for their mail servers.
Is it practical to white-list "big ISP"s ? There can only be so many and one would just need to record the IP addresses of their mail servers. -- --gh
