Solved

Exchange 2007 using Forefront TMG for autodiscovery fails when clients are using a separate web proxy

Posted on 2010-08-20
5
710 Views
Last Modified: 2012-05-10
I'm setting up Exchange 2007 using Forefront TMG for client traffic including autodiscovery.  All of our IE clients are set to use a linux based proxy.  Using the Test E-mail autoconfiguration tool in Outlook fails if IE is set to the proxy, but works perfectly if the proxy is left blank.  I've put exceptions into IE when the proxy is set and it still fails.  I'm testing a rule in TMG to allow anything from the proxy, but it doesn't seem to help.  Does anyone know how to deal with this?

Thanks!
0
Comment
Question by:mbromb
  • 3
  • 2
5 Comments
 
LVL 11

Accepted Solution

by:
Stephen Croft earned 125 total points
ID: 33486484
are you definitely adding the correct exceptions?

This sure looks like a case of "proxy routing internal requests externally" - seen it so many times :)

0
 

Author Comment

by:mbromb
ID: 33486837
The resolution is to add the FQDNs to the IE exceptions.  I tried all kinds of combos before getting it right.  Hopefully we can adjust the proxy server proxy.pac to account for them instead of having to push the exceptions out vioa GP.  The proxy.pac seems to include the servers, but I think it may not be accounting for HTTPS.
0
 
LVL 11

Expert Comment

by:Stephen Croft
ID: 33486851
usually the case - you will need FQDN and netbios names of the servers for autodiscover to work correctly :)
0
 

Author Comment

by:mbromb
ID: 33486915
The IE Exceptions box says "...beginning with:" .  That's misleading because just adding the netbios name did no good, but I'll add it for good measure.  Thanks!  
0
 

Author Closing Comment

by:mbromb
ID: 33511874
This comment got me on the right track
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to install and use the NTBackup utility that comes with Windows Server.
A list of top three free exchange EDB viewers that helps the user to extract a mailbox from an unmounted .edb file and get a clear preview of all emails & other items with just a single click on mailboxes.
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question