CmdID / PowerShell / Cmdlets / New
New-SystemMessage
Use the New-SystemMessage cmdlet to create custom system messages. Exchange PowerShell reference
From the Exchange PowerShell reference 8 parameters Its page in the reference
Parameters
-DsnCodeThe DsnCode parameter specifies the enhanced status code for the custom system message.-InternalThe Internal parameter specifies whether the system message is displayed to internal or external users.-LanguageThe Language parameter specifies the language of the message (for example, en for English or ja for Japanese).-QuotaMessageTypeThe QuotaMessageType parameter specifies the quota for the custom system message.-TextThe Text parameter specifies the text in the custom system message.-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.