Article ID: 2489822 - View products that this article applies to.
Consider the following scenario:
The Mailbox you are trying to access isn't currently available. Please try again in a few minutes.
This issue occurs because OWA Premium requires the user to have a mailbox when OWA Premium tries to create the security context. If the user does not have a mailbox, a UserHasNoMailboxException exception is thrown.
To resolve this issue, install the following update rollup:
(https://support.microsoft.com/kb/2529939/ )Description of Update Rollup 3 for Exchange Server 2010 Service Pack 1
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 2489822 - Last Review: April 6, 2011 - Revision: 2.0