We're having an issue where users that are members of various distribution groups are not reliably receiving messages. We have a newsletter that is sent out weekly by one user. They use 4 internal distribution groups (some of them nested) plus external email
addresses that add up to around 1170 recipients. We have around 280 internal users. Of those 280, around 100 are delivered, and 170 are not delivered but show as "pending" in the delivery report. External users seem to be receiving messages fine.
I tried doing a trace on myself, as I didn't receive the newsletter that was sent out yesterday.
$Temp = Search-MessageTrackingReport -Identity lorraine.user -Recipients jsmith@domain.ca
[PS] C:\Windows\system32>$Temp | %{Get-MessageTrackingReport -Identity $_.MessageTrackingReportID -BypassDelegateCheckin
g -ReportTemplate Summary }
The missing message was not in the list. It should have been the first result.
Here is an example of how one of the pending delivery reports look like:
Pending3/4/2015 4:12 PM s8ex1.domain.ca
The message has been transferred from s8ex1.network.domain.ca to S8EX2.network.domain.ca
Group Expanded
3/4/2015 4:12 PM s8ex1.network.caedm.ca
The list of members of the group "Camps - DG" was expanded so that the message can be delivered to each recipient
Pending
3/4/2015 4:13 PM S8ex1.network.caedm.ca
The message has been transferred from s8ex1.network.domain.ca to s8EX2.network.domain.ca
3/12/2015 12:55 PM s8ex1.network.caedm.ca
No further information is available about this message because the logs are no longer available.
Environment:
Exchange 2013 CU7
2 Servers running Windows Server 2012 in a DAG