Article ID: 241091 - View products that this article applies to.
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When you delete a message using Outlook Web Access (OWA), you receive the following error message:
404 - File Not Found
The message has already been deleted by another user who is accessing the same mailbox. The message remains visible in OWA because OWA does not automatically refresh the current view of the mailbox.
When you receive the "404 - File not Found" error message, click OK to accept the error message. Then press F5 to refresh your current view of the mailbox; the message should no longer appear.
This behavior is by design when multiple clients are accessing the same mailbox at the same time.
This behavior does not occur with Internet Explorer version 5. Instead, you receive the following error message.
The page cannot be found.
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.