hi i have installed exchange server 2007 and sucessfully receive and send emails. this was due to me connecting directly to the adsl modem/router where is forwarded port 80, 443, 25 and 110 to the server. i also place the server in a dmz. i wish now to put the exchange server behind my forefront tmg2010 firewall. i published it through the wizards but i cannot now send or receive any mail. 1. what setup do i need to have.? 2. do i need to remove the port forward on the modem/router to point to the firewall? 3. do i need to install the edge transport role on the firewall? im at ends on getting this solved. HELP

Hi Bob, Regarding to your question, I could provide you some document for your reference: http://www.msexchange.org/articles_tutorials/exchange-server-2010/migration-deployment/exchange-server-2010-edge-server-microsoft-threat-management-gateway.html http://exchangemaster.wordpress.com/2010/04/09/publish-exchange-2010-with-tmg-forefront-threat-management-gateway/ Due to Forefront related question you can ask in specific forum, here's the link for your convenience: http://social.technet.microsoft.com/Forums/en-US/category/forefront (This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites; therefore, Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. There are inherent dangers in the use of any software found on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet.)Rowen TechNet Community Support

hi rowen, i managed to get the owa published. when i logged into the site i received this error. (Error code: 500 Internal server error. The target principal is incorrect i have already changed fba to basic authentication on exchange server