Exchange outlook anywhere Authenication problems


I am hoping that someone would be able to give me a hand with something. Exchange 2007 with outlook anywhere enabled, all Certs up to date, everything seesm installed correctly.

Now when configuring Outlook , it finds the server fine and Auto Discover is working as it should, but the problem that I am having has to do with Authenicating the user. The Logon box comes up, and I eneter the credentials, as I would if I were in the office, but I keep getting rejected. I have tried the follwoing ways

User Name
Full Email Address

Nothing seems to work, Anyone have any suggestions?
Who is Participating?

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

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.

In the Exchange Account Settings.

1.  In Connection Tab
2.  In Exchange Proxy Settings
3.  Try using "Basic Authentication" in the Proxy authentication settings.
when i mention Exchange Account Settings, I met the Outlook Client Mail Account Settings for the Exchange Acct
rperaultAuthor Commented:

That worked just fine, how to enbed thoswe settings, so that when users configure Outlook they wouldn't have to make those changes?

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
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
you can configure the settings in outlook by GPO. The authentication type configured in outlook must match the authentication type on the CAS server. see it on EMC->Server Configuration-> choose the CAS Server on the right pane and click properties-> outlook anywhere tab
You can write a .vbs script to automatically configure that.   I dont know how though :)  Our backend server guys do that.
rperaultAuthor Commented:
Sorry I choose the incorrect Expert to award the points to. PLease award points to


rperaultAuthor Commented:
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

From novice to tech pro — start learning today.