HI Andy Well you could create a split tree/split brain DNS tree where the internal DNS servers would have same zone as the external i.e. Internet DNS servers but would have the servers internal IP address rather than the public one.
With regards to the issue around the MPLS link failing this would rather be handled by the routing infrastructure that Outlook/DNS One thing I have noticed with Outlook 2010 and Exchange 2007 is that if you change networks in mid-session outlook will prompt you to re-authenticate. Regards [cid:image001.jpg@01CB186A.CF27C080] Peter Johnson I.T Architect United Kingdom: +44 1285 658542 South Africa: +27 11 252 1100 Swaziland: +268 442 7000 Fax:+27 11 974 7130 Mobile: +2783 306 0019 peter.john...@peterstow.com This email message (including attachments) contains information which may be confidential and/or legally privileged. Unless you are the intended recipient, you may not use, copy or disclose to anyone the message or any information contained in the message or from any attachments that were sent with this email, and If you have received this email message in error, please advise the sender by email, and delete the message. Unauthorised disclosure and/or use of information contained in this email may result in civil and criminal liability. Everything in this e-mail and attachments relating to the official business of Peterstow Aquapower is proprietary to the company. Caution should be observed in placing any reliance upon any information contained in this e-mail, which is not intended to be a representation or inducement to make any decision in relation to Peterstow Aquapower. Any decision taken based on the information provided in this e-mail, should only be made after consultation with appropriate legal, regulatory, tax, technical, business, investment, financial, and accounting advisors. Neither the sender of the e-mail, nor Peterstow Aquapower shall be liable to any party for any direct, indirect or consequential damages, including, without limitation, loss of profit, interruption of business or loss of information, data or software or otherwise. The e-mail address of the sender may not be used, copied, sold, disclosed or incorporated into any database or mailing list for spamming and/or other marketing purposes without the prior consent of Peterstow Aquapower. No warranties are created or implied that an employee of Peterstow Aquapower and/or a contractor of Peterstow Aquapower is authorized to create and send this e-mail. [cid:image002.jpg@01CB186A.CF27C080] From: Andy Shook [mailto:andy.sh...@peak10.com] Sent: 30 June 2010 15:24 To: MS-Exchange Admin Issues Subject: Exchange 2010\OA config pipedream So let’s say someone wants to place their Exchange infrastructure in the leading independent data center provider in the USA </shameless Peak10 plug> and they want to drop an additional MPLS\WAN segment into the data center so all internal users will use their private network to access their mailboxes instead of the Internet. Outlook 2007\2010 will be setup to use Outlook Anywhere and will be a part of their single 2008 forest\domain. Can I work some DNS\Outlook mojo where if a private network path goes down, Outlook will go to the Internet to talk to Exchange from an internal network segment? Any other options besides sending everything to the Interwebs be default? Shook
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