You modified a journal rule, but no recipient is configured to receive NDRs for undeliverable journal reports. To help avoid ...

You modified a journal rule, but no recipient is configured to receive NDRs for undeliverable journal reports. To help avoid losing journal reports, you should configure a recipient for undeliverable journal reports, and monitor the mailbox for journal report NDRs. You specify the recipient at Mail Control > Journaling or in Windows PowerShell, by using the JournalingReportNdrTo parameter on the Set-TransportConfig cmdlet.