I don't think that that has ever been hidden info. Exchange, since at least 5.5, has had the option of using different DNS servers for outgoing resolution; somewhat necessitating it having a different resolver.
(This doesn't mean that I defend them fixing things they didn't tell about.) Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com -----Original Message----- From: Ben Scott [mailto:[email protected]] Sent: Thursday, May 06, 2010 11:09 AM To: MS-Exchange Admin Issues Subject: Re: FYI - MSFT doesn't tell all it knows On Thu, May 6, 2010 at 10:12 AM, Carol Fee <[email protected]> wrote: > If the SMTP doesn't use the operating system resolver, where does it > find the DNS servers that it uses ? Only Microsoft knows for sure, but my guess is that Exchange gets the IP address(es) of your full-service resolvers from the OS, but then uses its own internal stub resolver implementation. -- Ben
