We're using Exchanger Server 2003 and we have an external user accessing email via Outlook Web Access (OWA) using Internet Explorer (IE). He has no problem accessing his email. The only problem he encounters is that OWA keeps prompting him for his user credentials (username and password) whenever he tries to open Microsoft Word and Excel attachments.
It doesn't matter if he re-enters his credentials or cancels the prompts, the attachments will still open. It's just annoying that OWA keeps prompting the user for his credentials two to three times in a row.
Under "Directory Security" in the Internet Information Services (IIS), we configured only "Basic Authentication." The "default domain" was entered. The "Anonymous" logon was disabled.
Any assistance would be appreciated.
March 5, 2008 5:30 PM
December 7, 2010 5:55 AM