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Outlook 2007 prompting for credentials for old hosted Exchange, proifle is setup for a local exchange server

Hi everyone

We have a Client who we are in the process of moving from a simple hosted exchange solution through Microsoftonline.com to a local exchange 2010 server. Since it is only 5 users with very small mailboxes we are going the "easy" route and simply changing the MX records and creating new profiles on their outlook clients. They were using the microsoft single sign on tool to auto configure their outlook before, i started by uninstalling this.

Before deleting the old profile i exported her mailbox to a pst file. I then created a new profile and had it connect to the local exchange. I have tried letting autodiscover do the work for me (and it fills in the fields correctly) and manually entered the servers local address.

After opening outlook with this new profile it connects to the server ok (i can confirm this on both ends), but after about 10 seconds it prompts for the login credentials for "red001.mail.microsoftonline.com". I have ensured there is NOTHING in the profile pointing to this, as well i know the single sign on tool is not installed anymore. I have cleared local DNS caches as well as the servers DNS cache and ensured nothing is out of the ordinary in DNS.

I tried Ccleaner to clear up registry crap, but no change.

The user also uses business contact manager so i thought it might be interfacing with the server, so i removed that software as well, same problem.

Now even if i do not authenticate and click cancel, i get a "Needs Password", but i still get email through the local exchange, can send and receive ok.

I am at a loss as to where to go from here, we need to get rid of this message. Any ideas?

Thanks!
JS
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SpyderG
Asked:
SpyderG
1 Solution
 
WORKS2011Austin Tech CompanyCommented:
Sounds like you configured the auto-discover on your server, correct? Have you configured / checked auto-discover configured with the registrar where your domain is located, have you checked DNS here?
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suriyaehnopCommented:
Have check the autodiscover settings via https://www.testexchangeconnectivity.com, verify the autodiscover settings is correct
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DLeaverCommented:
Definately worth checking the Autodiscover settings  as mentioned, also check this doc below as Outlook 2007 does this and still sends and receives e-mails

I would set it manually yourself in the registry

http://support.microsoft.com/kb/956531
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SpyderGAuthor Commented:
After checking the registry we foung the cached address on all of the PCs. Changed to the new internal address and all was fixed!
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