Hi everyone, sorry if this issue has been posted (and resolved) several times, but after hours of googling I am still stuck with it and it's really frustrating ! I'm completely new to Exchange 2007 and taking over a project of someone else, i.e. it was not me who did the whole installation... The problem is, as you can imagine, when a user clicks on Out Of Office Assistant, he gets the famous: When now I try to ctrl-right click on the outlook icon and test email autoconfiguration, it tells me that it cannot discover any settings, and here is the output of the log tab: I really don't know if the guy who installed Exchange did it correctly, but the fact is that I don't have the necessary knowledge to troubleshoot this issue. Really hope you guys can help me sort it out... Feel free to ask for any other information... Cheers, LF

Looks like the Local DNS problem. Can you please verify the DNS configuration. Also make sure that your CAS server, Domain controller and DNS servers are reachable. Thanks.Vishal Ramnani | MCITP - Exchange 2007 | MCSE Messaging | MCTS - Win 2008 Config

Hi, Thanks for your answer. The DNS configuration seems fine. The exchange server is running dyndns to be reachable as we don't have public IPs in Mauritius... Do I need to put dyndns on the DC also? (DC running DNS Server also)

Hi,Is this a local Exchange server or is it in a Datacenter somewhere and you're using Outlook Anywhere?? based on your error message it looks like it isn't resolvign your Exchange server correctly.SF - MCITP:EMA, MCTS: Exchange 2010, Exchange 2007, MOSS 2007, OCS 2007 -- http://www.scottfeltmann.com

Hi,Have you read this post:http://social.technet.microsoft.com/Forums/en-US/exchangesvrdeploy/thread/5824f2af-abac-4f1b-b543-a7a78274c39dAnd please post the result here.Frank Wang

Hi, It's a local exchange...

Hi,Have you read this post:http://social.technet.microsoft.com/Forums/en-US/exchangesvrdeploy/thread/5824f2af-abac-4f1b-b543-a7a78274c39dAnd please post the result here. Hi,How about your question? Any update?Frank Wang

What is the output you get when you run this command test-outlookwebservice | flRegardsKiran

Hi, I finally managed to get the OOF assistant to display by specifying ignore client certificates in the SSL Properties of the default web site. But the fact is that, when it's enabled, it does not autoreply ! I.e. when someone sends an email to an OOF activated mailbox, he does not received the OOF reply back, and I'm really stuck as I really don't know how to troubleshoot this issue !