Strange outlook 2007 / Exchange 2007 problem – password prompt
Posted on 2010-11-13
I’m having a strange problem with a Win 7 / Outlook 2007 machine.
We have recently installed a new SBS 2008 server on this fairly typical & plain vanilla small office network (they did not have Exchange up to now).
Everything went smoothly with most machines (a mix of XP / Vista / Win / running Outlook 2003) except for one single workstation which is running Win 7 and Outlook 2007.
On that machine whenever launching Outlook the initial config works fine (i.e. the server is auto detected) but as soon as Outlook is loaded the user is prompted of a password. The interesting thing is that the password is apparently sought for a machine named “remote.mydomain.com” which is the external DNS name for the site (the public IP being configured on the SBS server in the various wizards) and not for the internal Exchange server name. No matter what is entered the prompt is recurring every few seconds but interestingly enough the mailbox is still updated from the server, even if the password dialog is dismissed.
I have tried
to re-create the mail profile from scratch
to reinstall Office 2007 with latest patches
to edit the host file in order to forward remote.mydomain.com to the internal Ip of the exchange server
to connect using HTTP/RPC
to use the various authentication methods
to remove all anti virus
to edit the registry as per KB 956531
to access the mailbox through OWA, which works perfectly
as this stage I am pretty much stumped…
As such any idea / suggestion most welcome