Fixes default value apply of JournalingReportNdrTo in EXO Transport Config

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 * AADRoleEligibilityScheduleRequest
   * Updated startdatetime and enddatetime properties to be of type DATETIME.
+* EXOTransportConfig
+  * Fixed an issue where `JournalingReportNdrTo` with the default value of `<>`
+    would throw an error during apply.  
+    FIXES [#5606](https://github.com/microsoft/Microsoft365DSC/issues/5606)
 
 # 1.25.226.1
 

Modules/Microsoft365DSC/DSCResources/MSFT_EXOTransportConfig/MSFT_EXOTransportConfig.psm1

@@ -398,7 +398,6 @@ function Set-TargetResource
     $ConnectionMode = New-M365DSCConnection -Workload 'ExchangeOnline' `
         -InboundParameters $PSBoundParameters
 
-
     Write-Verbose -Message "Setting EXOTransportConfig with values: $(Convert-M365DscHashtableToString -Hashtable $PSBoundParameters)"
     $SetValues = [System.Collections.Hashtable]($PSBoundParameters)
     $SetValues.Remove('IsSingleInstance') | Out-Null
@@ -411,6 +410,11 @@ function Set-TargetResource
     $SetValues.Remove('ManagedIdentity') | Out-Null
     $SetValues.Remove('AccessTokens') | Out-Null
 
+    if ($SetValues.JournalingReportNdrTo -eq '<>' -or [System.String]::IsNullOrEmpty($SetValues.JournalingReportNdrTo))
+    {
+        $SetValues.Remove('JournalingReportNdrTo') | Out-Null
+    }
+
     Set-TransportConfig @SetValues
 }
 

Modules/Microsoft365DSC/DSCResources/MSFT_EXOTransportConfig/MSFT_EXOTransportConfig.schema.mof

@@ -20,7 +20,7 @@ class MSFT_EXOTransportConfig : OMI_BaseResource
     [Write, Description("The InternalDsnReportingAuthority parameter specifies the domain in the machine-readable part of internal DSN messages.")] String InternalDsnReportingAuthority;
     [Write, Description("The InternalDsnSendHtml parameter specifies whether internal DSN messages should be HTML or plain text.")] Boolean InternalDsnSendHtml;
     [Write, Description("The JournalMessageExpirationDays parameter extends the number of days that undeliverable journal reports are queued before they expire.")] SInt32 JournalMessageExpirationDays;
-    [Write, Description("The JournalingReportNdrTo parameter specifies the email address to which journal reports are sent if the journaling mailbox is unavailable.")] String JournalingReportNdrTo;
+    [Write, Description("The JournalingReportNdrTo parameter specifies the email address to which journal reports are sent if the journaling mailbox is unavailable. Once set, it cannot be reset to blank again.")] String JournalingReportNdrTo;
     [Write, Description("The MaxRecipientEnvelopeLimit parameter specifies the maximum number of recipients in a message.")] String MaxRecipientEnvelopeLimit;
     [Write, Description("Reply all storm block duration hours.")] SInt32 ReplyAllStormBlockDurationHours;
     [Write, Description("Reply all storm detection minimum recipients.")] SInt32 ReplyAllStormDetectionMinimumRecipients;