Merge pull request MicrosoftDocs#9840 from Benny-54/patch-1

Update Set-OwaMailboxPolicy.md

Author: chrisda

exchange/exchange-ps/exchange/Set-OwaMailboxPolicy.md

@@ -84,6 +84,7 @@ Set-OwaMailboxPolicy [-Identity] <MailboxPolicyIdParameter>
  [-NpsSurveysEnabled <Boolean>]
  [-OrganizationEnabled <Boolean>]
  [-OneDriveAttachmentsEnabled <Boolean>]
+ [-OneWinNativeOutlookEnabled <System.Boolean>]
  [-OnSendAddinsEnabled <Boolean>]
  [-OutboundCharset <OutboundCharsetOptions>]
  [-OutlookBetaToggleEnabled <Boolean>]
@@ -1470,6 +1471,27 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -OneWinNativeOutlookEnabled
+This parameter is available only in the cloud-based service.
+
+The OneWinNativeOutlookEnabled parameter controls the availability of the new Outlook for Windows App. Valid values are:
+
+- $true: The New Outlook for Windows App is available. This is the default value.
+- $false: The new Outlook for Windows App isn't available.
+
+```yaml
+Type: System.Boolean
+Parameter Sets: (All)
+Aliases:
+Applicable: Exchange Online
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### -OnSendAddinsEnabled
 The OnSendAddinsEnabled parameter specifies whether to enable or disable on send add-ins in Outlook on the web (add-ins that support events when a user clicks Send). Valid values are: