CmdID / PowerShell / Cmdlets / New
New-RemoteDomain
Use the New-RemoteDomain cmdlet to create a managed connection for a remote domain. Exchange PowerShell reference
From the Exchange PowerShell reference 5 parameters Its page in the reference
Parameters
-NameThe Name parameter specifies a unique name for the remote domain object.-DomainNameThe DomainName parameter specifies the SMTP domain that you want to establish as a remote domain.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.