Hi @Sem Anikin ,
thanks for your reply. I have checked journal rules in EAC and with powershell. There is no rules in my configuration. thanks for your reply. I have checked journal rules in EAC and with powershell. There is no rules in my configuration. But when I created new journal rule and then disabled it, everythings become normal.
Glad to see that your issue had already been resolved and thanks for sharing the solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "[The question author cannot accept their own answer. They can only accept answers by others]", I'll repost your solution in case you'd like to "[Accept]" the answer.
MS Exchange 2019 send delivery report to each email
Issue Symptom:
My exchange server sends delivery reports to one of the admin accounts for any emails that come through even an external address.
Solution:
To create a new journal rule and then disabled it, then it will stop sending delivery reports to admin accounts.
Best Regards,
Jarvis Sun