Hi,
Thanks for contacting our forum. Does this issue affect all of the messages from the specific domain or specific messages or just random?
We can check step by step:
First step: as Ed mentioned we can check the protocol log for this specific domain:
1) Run following command to enable protocol log on all the send connectors on that Exchange server. Get-receiveconnector | Set-receiveconnector -protocollogginglevel verbose 2) Try to reproduce the issue. 3)
Collect the latest SMTP log from following location on that server(by default): C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\Logs\FrontEnd\ProtocolLog\SmtpReceive
After that we need to disable: Get-receiveconnector | Set-receiveconnector -protocollogginglevel none
And then we need to check the message tracking of this message with the command below:
Get-MessageTrackingLog –ResultSize Unlimited –Start "11/2/2017 2:30PM” –End “11/2/2017 3:30PM” –Sender “testuser@thitdomain.com” -MessageSubject "test"|
fl >c:\MTL.txt
Hope it helps and thanks for your effort.
Regards,
Jason Chao
Please remember to
mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact
tnmff@microsoft.com.