How to enable the light version of OWA in Exchange 2013?
By default, the option to enable the light version of OWA is not exposed in OWA 2013.
It is easy enough to light up the option, if you want it for any reason.
Get-OWAVirtualDirectory | Set-OWAVirtualDirectory –LogonPageLightSelectionEnabled $true will do the trick. Run iisreset for the changes to take effect.
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