Forum Discussion
Microsoft Teams Channel Delivery has failed to these recipients bounce back
Hi Microsoft Community,
Hopefully, someone can help me out.
It's about 2 days now since we can't send emails from Outlook app / Outlook Web.
We keep getting a Delivery that failed bounce back mail, there hasn't been any change before these 2 days and it worked fine before without any issues.
What I already checked are:
- Teams policy ( made sure that email integration is enabled )
- Exchange routing policy ( There weren't any changes made in this section )
- DNS Records ( added one extra DNS MX record to allow emea.teams.ms in the mail protection.outlook.com
Anyone have any tips where i should look to fix this problem ?
- Unfortunately troubleshooting the email to channel functionality is not easy, as the process itself is sort of a black box (messages are routed to a Microsoft-managed tenant to which you have no access). Thus the best thing to do here is open a support case.
You can of course share the full NDR just in case.- Hi Vasil,
For some unknown reason, it started working again yesterday.
I'm still troubleshooting how it was possible that it stopped working for 2 days.
