ASP.NET, SQL Server, WPF, C#, VB.NET

We like like to start using OMA. We have Exchange 2k3 (sp1) running on a  
  
Win2k3 (sp1). When we use any mobile device, we receive the same error:  
  
"Unable to connect to your mailbox on server MY-SERVER. Please try again  
  
later. If the problem persists contact your administrator."  
  
Any suggestions?

And we are trying to use Treo 650's.  
  
"Wayne" <wray@hinklaw.com> wrote in message  
  
news:%23hZ7k2fvFHA.2348@TK2MSFTNGP15.phx.gbl...

"MC" <seaedsit@hotmail.com> wrote:  
  
Is the user's email username@companyname.com or do they have a  
  
different email address?  
  
--  
  
__________________________________________________________________________________  
  
Ed Hansberry  (Please do *NOT* email me. Post here for the benefit of all)  
  
What is on my Pocket PC? http://www.ehansberry.com/  
  
Microsoft MVP - Mobile Devices   www.pocketpc.com  
  
What is an MVP? - http://mvp.support.microsoft.com/

Hi,  
  
I get the same error message when connecting to OMA.  
  
Front End Server:     Exchange 2003 SP1 on Windows Server 2003 SP1  
  
Back End Server:     Exchange 2003 SP1 on Windows 2000 SP4 Adv. Server -  
  
Clustered  
  
The strange thing is, that only a few users get that error message. I tried  
  
to connect via mobile phone (Sony Ericsson T610) and via Internet  
  
Explorer...  
  
Thanks for any answers,  
  
MC  
  
"Wayne" <wray@hinklaw.com> wrote in message  
  
news:OkQ9a%23fvFHA.1132@TK2MSFTNGP10.phx.gbl...

strange thing....  
  
Connecting to OMA with a newly created user works fine.  
  
If I create an user account by copying an existing user OMA fails to  
  
connect.  
  
"MC" <seaedsit@hotmail.com> wrote in message  
  
news:utQC4EqwFHA.2932@TK2MSFTNGP10.phx.gbl...

The user' primary SMTP address is firstname.lastname@company.com  
  
Every user has a SMTP proxy address: username@company.local  
  
The name of the Active Directory Namespace is company.local  
  
"Ed Hansberry, MS-MVP/Mobile Devices"  
  
<spamfree-silvernino@hotmail.spambegone.com> wrote in message  
  
news:dj5gj1tosc79cdheat8rj5ivgfbeu239pb@4ax.com...