With an Exchange 2007 Edge server, is the IP allow list a true whitelist-as in, all mail from an IP address on that list will always be trusted, no matter what?
We use Postini, and their servers' IP addresses are on our allow list. When we had Sender Reputation enabled, though, the Edge server would add Postini's servers to the block list if too much junk seemed to come from them-which of course would cause all of our inbound mail to stop coming. At least, that's what I remember happening when we tried it a year ago. That's why I turned off Sender Reputation on our edge server, as I recall, after we started using Postini. Or could I be remembering wrong? Should the IP allow list trump everything else, or can a machine be explicitly allowed and automatically blocked simultaneously? John Hornbuckle MIS Department Taylor County School District www.taylor.k12.fl.us NOTICE: Florida has a broad public records law. Most written communications to or from this entity are public records that will be disclosed to the public and the media upon request. E-mail communications may be subject to public disclosure.
