I'm suggesting that MSN/Hotmail and the others are using a system or systems that aren't properly updated, not that they are necessarily querying ORDB directly. There are no issues with my outbound mailserver IP that shows up in any monitoring system or blacklist of which I'm aware. We had no issues with delivering mail to these sites until ORDB came back online. Thanks Suresh! -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Suresh Ramasubramanian Sent: Thursday, April 03, 2008 11:07 AM To: Fox, Thomas Cc: nanog@merit.edu Subject: Re: Hotmail NOC Contact No. Thats not because of ordb. Because you see, if hotmail or these other providers were using ORDB (they sure as hell arent) none of the subscribers to those srevices would be getting ANY email at all. There's some other issue with your IP. And it is an issue that multiple providers are seeing NAT gateway and mailserver IP on the same interface, for instance? Or an overactive marketing department with a newsletter? Or an ISP with outbound spam problems from compromised user PCs? srs