Merge pull request #13287 from MicrosoftDocs/Identity-chrisda

Added Caution alert to Identity param 4

Author: chrisda

exchange/exchange-ps/ExchangePowerShell/Get-PublicFolderStatistics.md

@@ -52,6 +52,8 @@ The Identity parameter specifies the GUID or public folder name that represents
 
 You can omit the parameter label so that only the public folder name or GUID is supplied.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: PublicFolderIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-QuarantineMessage.md

@@ -110,6 +110,8 @@ The Identity parameter specifies the quarantined message that you want to view.
 
 When you identify the quarantine message by using this parameter, the RecipientAddress, QuarantineUser, and ReleasedUser properties are available. To see these values, you need to use a formatting cmdlet. For example, `Get-QuarantineMessage -Identity <Identity> | Format-List`.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: QuarantineMessageIdentity
 Parameter Sets: Details

exchange/exchange-ps/ExchangePowerShell/Get-QuarantineMessageHeader.md

@@ -61,6 +61,8 @@ The Identity parameter specifies the quarantined message that you want to view t
 
 You can find the Identity value for a quarantined message by using the Get-QuarantineMessage cmdlet.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: QuarantineMessageIdentity
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-QuarantinePolicy.md

@@ -67,6 +67,8 @@ The Identity parameter specifies the quarantine policy you want to view. You can
 - Distinguished name (DN)
 - GUID
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: QuarantineTagIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-Queue.md

@@ -93,6 +93,8 @@ This example lists only the external queues.
 
 The Identity parameter specifies the queue. Valid input for this parameter uses the syntax Server\\Queue or Queue, for example, Mailbox01\\contoso.com or Unreachable. For details about queue identity, see [Queue identity](https://learn.microsoft.com/Exchange/mail-flow/queues/queues-and-messages-in-powershell#queue-identity).
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: QueueIdentity
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-RMSTemplate.md

@@ -59,6 +59,8 @@ This example retrieves the Company Confidential RMS template.
 
 The Identity parameter specifies the name of the RMS template.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: RmsTemplateIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-ReceiveConnector.md

@@ -71,6 +71,8 @@ The Identity parameter specifies the Receive connector that you want to view. Yo
 
 You can't use this parameter with the Server parameter.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: ReceiveConnectorIdParameter
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-Recipient.md

@@ -157,6 +157,8 @@ The Identity parameter specifies the recipient object that you want to view. You
 - Email address
 - GUID
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: RecipientIdParameter
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-RecipientFilterConfig.md

@@ -47,6 +47,8 @@ This example returns detailed information about the recipient filter configurati
 
 This parameter is reserved for internal Microsoft use.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: OrganizationIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-RecipientPermission.md

@@ -79,6 +79,8 @@ You can use any value that uniquely identifies the recipient. For example:
 - Email address
 - GUID
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: RecipientIdParameter
 Parameter Sets: (All)