On 01/09/11 22:10, Always Learning wrote: > > On Thu, 2011-09-01 at 12:43 -0700, Scott Silva wrote: > >> I get TONS of spam with legitimate DKIM signatures... > > How is that possible ? > Because spammers know how to sign their email with DKIM signatures too, same as spammers can set an SPF record in DNS. These are NOT specifically anti-spam techniques, they are designed to prevent forgeries, not spam per se.