Outlook 2003 Exchange

Have some users who need upgrading to later version of outlook. However, their outlook 2003 is connected to a remote exchnange server (the exchange server is not hosted on the localt domain).

Each time they try to connect it keeps popping up with the username and password box. Have tried virtually everything on the PC to prevent this happneing but to no avail. Have tried readjusting authentication settings on the profile. Tried adding to save the password. Also, tried adding to save the password in control panel as well as numerous things provided from the web, but to no avail.

Any possible resolutions would be much appreciated.
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Pramod UbheCommented:
I don't think you can avoid the login pop-up for users as the exchange is hosted externally. Usually it does not ask username password if exchange is hosted internally and is configured to use the credentials that user is logged in with.
discoveranotherAuthor Commented:
Thanks for reply. However, we have many users at other locations where this doesn't happen !

An existing pst file has been imported into outlook as well, could this causing issues ?
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discoveranotherAuthor Commented:
Just one other thing forgot to mention !!!

A new server has been installed, although as I said, exchange isn't hosted on this. Apparently, emails worked ok previously, but when adding the PC to the new domain the issue has happened since then !

The user can't remember if the emails were set up with pop3 or exchange, which i guess users aren't aware. So I just added them to the exchange server. I have a fuuny feeling they may have been pop3 accounts, but should still work ok under exchange.
discoveranotherAuthor Commented:
None of the solutions worked

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discoveranotherAuthor Commented:
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