question

RogetLuo-3362 avatar image
0 Votes"
RogetLuo-3362 asked LucasLiu-MSFT commented

1 on-prem user not receiving emails from O365 user (hybrid environment)

Hybrid environment with on-prem Exchange 2016, Outlook 2016. This doesn't appear to be a setup issue as it is only affecting a single on-prem user (UserA).

When any O365 users send an email to UserA, it never reaches UserA's inbox. No issues with UserA emailing to O365 or other on-prem users.

No bounced back notification to O365 senders. Also verified that UserA is able to send/ receive emails from outside of organization.

Verified no Mail Flow restrictions on UserA.

Any help is greatly appreciated. Thanks in Advance.

office-exchange-server-administrationoffice-outlook-itpro
· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

What does message tracking show from 365?

0 Votes 0 ·

1 Answer

LucasLiu-MSFT avatar image
0 Votes"
LucasLiu-MSFT answered LucasLiu-MSFT commented

Hi @RogetLuo-3362 ,
1.In addition to what Andy said, you could also run the following command in on-premises Exchange to check whether the mail sent to UserA is successfully received:

 Get-Messagetrackinglog --Recipients <> -Start <> -End <> -MessageSubject <>

2.Please try to login to OWA and see if userA could receive the mail.

3.In addition, is there any difference between UserA and other mailbox settings? You could run the following command to check the settings of userA:

 Get-Mailbox -Identity <> | fl



If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.




· 2
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @RogetLuo-3362 ,
I am writing here to confirm with you how thing going now?



If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


0 Votes 0 ·

Hi @RogetLuo-3362 ,
I am writing here to confirm with you how thing going now? If the above suggestion helps, please click “Accept as answer” to mark helpful reply as an answer.Your action would be helpful to other users who encounter the same issue and read this thread.
Thanks for your understanding.



If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


0 Votes 0 ·