we have a problem with OneBridge.
When we try to connect Onebridge (version for windows
mobile) at our Exchange 2007 server for synchronizing mail,
with one of our mobile phone, we retrive this error:

Logging User "pippo.paperino" into Exchange.
Successfully created an
instance of a CDO Session Object
Generated profile string.
Failed to perform logon to
Exchange server with profile [2K3X64EXCH
SMTP:Pippo.Paperino@innowatio.it] Error: 8004011d

All other tasks have worked fine, and the credential for
log-in are correct. With other Onebridge client installed on
many different mobile phone (with both windows mobile and
Symbian) we have not error and all works fine.

How can i resolve it?
Thank you,