Outlook 2007/2010 (mail clients)
Windows Server 2003 (DC)
Windows Server 2007 (exchange server) with IIS 6.0
When a user tries to connect with Outlook remotely, they are prompted for their password. After entering their password, The password dialog box returns even though they entered their password correctly.
Internal users do not seem to have this problem, It is just the remote users. They connect to the Exchange Server via VPN or Outlook Anywhere. Web Access works fine so is not a password issue.
The only thing I recall adding recently is the "internet authentication service" on the DC but i have since removed that windows feature but the password issue is still persisting.
Any guidance would be appreciated.