Merge branch 'master' into chrisda

Author: chrisda

exchange/exchange-ps/exchange/sharing-and-collaboration/New-OrganizationRelationship.md

@@ -98,15 +98,13 @@ Accept wildcard characters: False
 ```
 
 ### -DomainNames
-This parameter is available only in on-premises Exchange.
-
-The DomainNames parameter specifies the SMTP domains of the external organization. You can specify multiple domains separated by commas (for example, "contoso.com","northamerica.contoso.com").
+The DomainNames parameter specifies the SMTP domains of the external organization. You can specify multiple domains separated by commas (for example, "contoso.com","northamerica.contoso.com"), limited to 238 domains in one request.
 
 ```yaml
 Type: MultiValuedProperty
 Parameter Sets: (All)
 Aliases:
-Applicable: Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019
+Applicable: Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online
 Required: True
 Position: Named
 Default value: None