Tuesday, April 17, 2007

Log into OWA 2007 and 2010 with a Default Domain

Customers with Exchange in a single domain usually ask how to change OWA so users can log in using just a username instead of domain\username. This was problematic in Exchange 2003 because of the DS2MB background process, but simple to do in Exchange 2007 or Exchange 2010.
  • Open Exchange Management Console
  • Expand Server Configuration
  • Select Client Access and click the Outlook Web Access tab
  • Select owa (Default Web Site) and click the Properties action
  • Click the Authentication tab
  • Under Use forms-based authentication, select User name only
  • Click Browse and select the domain name
  • Click OK
  • Run IISRESET /NOFORCE to restart IIS and enforce the change
Or, even easier using PowerShell:
Then run IISRESET /NOFORCE to restart IIS and enforce the change.  Note that this will automatically change the logon page to display the new logon requirements.
Set-OWAVirtualDirectory -Identity "owa (default web site)" -LogonFormat username -DefaultDomain companyabc.com
Then run IISRESET /NOFORCE to restart IIS and enforce the change.  This will automatically change the logon page to display the new logon requirements. 10:26 AM