DeviceLock Service : Managing DeviceLock Service for Windows : Service Options : OWA server(s)
  
OWA server(s)
This parameter allows you to define the list of Outlook Web App (OWA, formerly Outlook Web Access) server’s URLs. The OWA servers specified here are treated as the Web Mail protocol by the NetworkLock module. All OWA servers not specified here are treated as the HTTP protocol by the NetworkLock module. This parameter requires that the NetworkLock policy (any protocols-related DeviceLock parameters) be defined. Otherwise, this parameter has no effect.
 
Note: The outlook.office.com and outlook.office365.com servers are always treated as the OWA servers.
Multiple URLs must be separated by a comma (,) or semicolon (;). You can also press ENTER after each entry. You can use the asterisk (*) wildcard in URLs (for example, *.com/owa matches any URL that ends in .com/owa).