Forum Discussion

dan-o365's avatar
dan-o365
Copper Contributor
Jun 06, 2019

Emails to distribution list being dropped

Emails have just been dropped with no NDR. These are internal users messaging an internal distribution group. The support tech had no idea, and refused to escalate the case. When I did a message trac...
microsoft 365
dan-o365's avatar
dan-o365
Copper Contributor
Jun 07, 2019

VasilMichev 

 

Jun 4, 2019 4:00:22 PM
Receive
Message received by: DM5PR06MB2345 using TLS1.2 with AES256
Jun 4, 2019 4:00:22 PM
Submit
The message was submitted.
Jun 4, 2019 4:00:22 PM
Expand DL
The message was sent to a distribution list (DL) that was expanded to the recipients of the DL.
Jun 4, 2019 4:00:22 PM
Drop
Reason: [{LED=250 2.1.5 RESOLVER.GRP.Expanded; distribution list expanded};{MSG=};{FQDN=};{IP=};{LRT=}]
Jun 4, 2019 4:00:22 PM
Spam Diagnostics
 
 
 More information
Message ID:
<3FEF1E44-806D-4462-AA96-BC6329B700DC@****.com>
Message size:
48 KB
From IP:
50.243.147.228
To IP:
VasilMichev's avatar
VasilMichev
MVP
Jun 08, 2019

You need the message trace details, Get-MessageTraceDetail. And you can also check the traces to the individual recipients, especially the ones that are having issues receiving messages.