Forum Discussion

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

VasilMichev

MVP

Jun 07, 2019

That message is perfectly normal for emails sent to DLs, post the full message trace.

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
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.
- dan-o365
  Copper Contributor
  Jun 10, 2019
  VasilMichev
  Where in office 365 am I allowed to use Exchange cmdlets?
  - VasilMichev
    MVP
    Jun 10, 2019
    Nowhere, use PowerShell: https://docs.microsoft.com/en-us/powershell/exchange/exchange-online/connect-to-exchange-online-powershell/connect-to-exchange-online-powershell?view=exchange-ps