Problems with OWA are usually in the setup and depend on the version of OWA
Microsoft Exchange Server: Comparing Office Outlook Web Access to Earlier
In any case, your question would be better directed to a newsgroup for
Exchange users since Outlook Express users and MVPs have little or no
exposure or experience with OWA (Outlook Web Access). Good luck.
Jim Pickering, MVP, Outlook Express
Please deliver feedback to the newsgroup, so that others can be helped.