Security by obscurity, in this day and age? :) On Wed, Dec 16, 2009 at 11:42 AM, James Hess <mysi...@gmail.com> wrote: > As is common for many domains. > Spammers coming in by scanning large ranges of IPs, have no > pointer to report the mailserver they discovered is �...@example.com > inbound (or outbound) mail. > > Since the RDNS domain is different, and in fact generic, which helps > avoid assisting the spammer in identifying the IP as an inbound > mail server.
-- Suresh Ramasubramanian (ops.li...@gmail.com)
