> RFC 1035, I think it was, dating back a few years, specified that > reverse DNS lookups were optional. Has a newer RFC made them > mandatory?
No, but if you want to get your mail delivered, you'd better have one on your mail sending host. Networks from AOL on down now reject mail from no-rDNS hosts because the amount of non-spam that comes from them is vanishingly small. Regards, John Levine, [EMAIL PROTECTED], Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://iecc.com/johnl, Sewer Commissioner "More Wiener schnitzel, please", said Tom, revealingly.
