You do have a choice if you're not concerned about the deliverability of your e-mail. Remember, the Internet remains a group of service providers/organizations/subscribers that voluntarily work together and can choose what goes in or out. And so if they decide not to receive traffic from you, for any reason at all, there's no legal requirement. If they require that all e-mail servers that want to send e-mail to them have rDNS entries then persons who want to deliver e-mail to that entity need to comply. Frank -----Original Message----- From: Stephane Bortzmeyer [mailto:bortzmeyer@nic.fr] Sent: Sunday, June 29, 2008 11:32 AM To: nanog@nanog.org Subject: Re: ICANN opens up Pandora's Box of new TLDs <snip> We already see this in the email world, where a self-appointed cartel like the MAAWG can decide technical rules and policies, bypassing both IETF and ICANN. Even if only one half of the big operators enforce these rules, they will become de facto regulations, since noone can afford to have his email refused by this half. (To take a recent example, I configure rDNS on every email server I managed, even if I find the rule stupid and unfair, because I have no choice.) <snip>