Linked Mailbox Authentication

We have recently upgraded a network that consists of two domains (one 2003, the other 2008) that are separate but trusted (a full trust is established between them).

Users on both domains connect to the Exchange 2010 server in the 2008 domain.  These users have linked mailboxes on that server, and can log in to the mailbox using their usual username and password.

The issue is that when Outlook is used (for a user with linked mailbox), it always prompts for the username and password when it starts up (even though the user is logged in with the correct credentials).  The user has to enter their details in the form domain.local\username with their usual password.

I would like to know how to ensure that these credentials are correctly supplied without the user having to enter them each time.  Ticking "Remember Details" does not work.
LVL 24
purplepomegraniteAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Will SzymkowskiSenior Solution ArchitectCommented:
Have you tried to get the users to enter their username and password in the "Stored Usernames and passwords" dialog box?
- Open Control Panel
- Click User Accounts
- Click Advance Tab
- Click Manage Passwords button
- Click Add and enter the users credentials and the server they are connecting to

This should prevent it from happening. You might have already tried this but worth a shot.

Hope this helps~!
purplepomegraniteAuthor Commented:
I hadn't tried it, but unfortunately it also doesn't work (I've just tested).  Thanks for the suggestion though!
purplepomegraniteAuthor Commented:
Problem has now been resolved.  It was due to the Exchange server not checking against the trusted domain when authenticating users.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Simon CookCommented:
Thank you for the steer. How do you configure this?
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.