requireing full email address as username

Hi experts.

I'm managing a hosted exchange 2010 environment, in which all users are part of an OU called Hosting.
So when configuring the mailbox on a phone and not on Outlook, they have to type the domain (Which is Hosting) and their username.
I want that the username will be the full email address, meaning that if someones username was danny, and his email address is danJ@example.tld the full username will have to be danJ@example.tld and not Hosting/Danny.

Is it possible? Keep in mind we have many email domains in the environment and not just one
David SankovskySenior SysAdminAsked:
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.

Dirk KotteSECommented:
you need software that recognize the UPN of a user and you have to fill the UPN's for all users within your directory.
the UPN may use a different domain than the users default domain.

so\max  may have the UPN
and\lucy may have the UPN
David SankovskySenior SysAdminAuthor Commented:
you need software that recognize the UPN of a user
Can't something be done so that users can use the default builtin exchange activesync client on Android?
To dkotte's point, you would need to alter your authentication method to use UPN versus the username. This will affect all users authentication

Are you using ADFS where the hosted site queries your AD?
if you use the email address rather than the domain\username what happens?

You may have to check with the hosting provider to make sure their setup allows for UPN based authentication. and/or make sure they have the mapping for user@emailaddress to be transmitted to your AD for auth .....
Jeremy WeisingerSenior Network Consultant / EngineerCommented:
Since it's Exchange and you're using ActiveSync, all you need to do is configure their UPN to be the same as their primary SMTP address and you should then be able to have them authenticate with their email address. Autodiscover should also start working if your clients have the proper DNS record setup. ( pointing to your public facing CAS)

Not that you'll need to add the domain names as UPN suffixes in your domain. You may also want to split the clients up into OUs so you can assign a default UPN to the OU for their specific domain. But that's optional.

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
David SankovskySenior SysAdminAuthor Commented:
Thank you all for your help
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.