imap in outlook 2010 cannot connect to exchange 2003

Hi,

We uninstalled Office 2003 and clean installed with 2010.
We have problem where the users are using outlook 2010 imap cannot connect to exchange 2003. the users get prompted for password as soon as the outlook has finished migrating profile and open.

We have tried to remove the profile and created new profile but the users still can't connect using imap.
It works with 2007 when we downgraded but not with 2010.
We have tried axigen outlook connector but it's still not working under 2010.

Please advise if you have the workaround.

thanks
LVL 2
DAHITSydneyAsked:
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chapmanjwCommented:
What is the specific error that is occurring?  Is it just not accepting the username and password?

You might try using "domain\username" for the username.
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Berkson WeinTech FreelancerCommented:
Have you tried installing on a machine that hasn't had office on it before, or by removing the old version, restarting, and then installing office 2010?  Are you using the autoconfigure functionality of Outlook 2010?  Obvious question, but are you sure the settings are correct?
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DAHITSydneyAuthor Commented:
hi there,

chapmanjw: i've tried with or without the "domain\username". no joy, still asking for username and password.

weinberk: Yes; i've tried from a brand new machine from the image with office 2010. we didn't use autoconfigure; we set it up manually and yes; we double-triple checked the settings; and they are all looks good.

from the event viewer:
"A new Microsoft Exchange account cannot be manually configured while Outlook is running. To add a manually configured account, exit Outlook. In Control Panel, open Mail, and then click E-mail Accounts."

I've tried to close outlook and create the profile from "control panel - mail - new profile" but still no joy; asking for the username and password.

cheers.
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DAHITSydneyAuthor Commented:
weinberk: we just tried "autoconfigure" as well; but still no joy.

cheers.
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chapmanjwCommented:
Try setting up the profile outside of Outlook.  Close Outlook completely and open the Mail icon in the Control Panel.  Create the profile there and setup the account.  After setting up the account there, try opening Outlook.
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DAHITSydneyAuthor Commented:
Hi Chapmanjw;

as per my comment above; i've tried that method; but still no joy.

also i've done another test; i've disabled Trend Micro AV as well; but still no joy.

cheers.
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DAHITSydneyAuthor Commented:
Hi chapmanjw, it didn't work, i've tried to setup the profile while outlook is closed but it still prompt me for password.
but when you downgrad it to 2003 or 2007, it work seamlessly without having to reconfigure the account.
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DAHITSydneyAuthor Commented:
solve it by myself.
points refund please.

thank you.
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DAHITSydneyAuthor Commented:
FYI, it works when the exchange 2003 server uses SSL (port 993) for outgoing mail and TLS for incoming.
previously it was setup to connect via port 143 and won't work with outlook 2010
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