Two of my clients (since 12/02/06) have been reporting to me that they can no longer check webmail or OWA Outlook Web Access through their Mac. They get the Username and Password prompts, but when they log in, they get an "Access Denied" message. I did some minor Windows Updates on the Exchange 2003 box ON 12/02, but nothing related to IIS or Exchange. I have since uninstalled those updates trying to nail down the problem. I have an iBook G3 OS 9.2 using IE and I can connect fine with no issue.
We have an Entrust SSL Certificate, so users can only log in with "https://mail.mycompany.com/exchange
I'm scratching my head on this one, were there any Mac OS 10.x updates recently that would have caused this? Our firewall logs don't indicate anything either. Any help would be appreciated