In the SMTP virtual server's properties -> Delivery -> Advanced -> configure, enter SECUREWAN.COM's DNS server first, then a regular DNS server.
and if SECUREWAN respond with a 10.10.x.x address, your firewall or gateway should already know how to go directly to HISOWN.COM or HEROWN.COM without hitting the internet first.
if routes for 10.10.x.x do not exist yet, then it's just a matter of adding them into your gateway.
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by: SpottedBunnyPosted on 2007-07-12 at 18:53:51ID: 19477817
I believe the key lies in that the SECUREWAN.COM DNS has records for all the dedicated links to all the other organizations... therein we can somehow set our Exchange server to query the SECUREWAN.COM DNS... if it returns a 10.10.x.x address, then route mail here. Otherwise, route it through the Internet. That's a concept, but how, if possible, can it be executed? Other ideas?