Step 2: Define a recipient for Non-Delivery Reports
Last Modified on 07/03/2019 6:11 pm IST
If you are configuring journal rules for the first time, you need to specify the alternate Journaling recipient for undeliverable journal reports. If a journal report can’t be delivered to the Journaling mailbox specified in a Journal rule, non-delivery reports in Office 365 are queued in Exchange Online for some time.
You are not allowed to define journal rules if NDR setting is disabled or email id is not assigned to receive non-delivery reports.
Note: Any mail sent to the address used for undeliverable journal reports won’t be journaled and won’t honor transport and mailbox rules settings. It’s recommended that you create a dedicated mailbox for undeliverable journal reports.