Dan - yes, this should be available, if I'm understanding you right. If you mean that groups didn't have SMTP addresses assigned properly and inbound email to them got bounced for "unknown recipient" then yes, it should show this in the Message Trace feature of the EAC.
Inside the EAC/admin portal, go to the Exchange admin area and then Mail Flow
and then Message Trace
.
From there, just do a basic trace. If you want to specify the email addresses in question, click on the Add Users
button in the appropriate section and then just type in the email address next to Check
and don't hit anything but OK
.
The search results should give you what you are looking for. They aren't super detailed in the EAC though.
EDIT: if you want to export the results this is going to be done through the Powershell with Exchange Online.
Something like:
Get-MessageTrace -RecipientAddress bob@domain.com -StartDate 09/17/2013 -EndDate 09/19/2013 | fl
You could add a where
statement at the end as well if you wanted just the failed ones as well as grabbing the trace details.
Something like:
Get-MessageTrace -RecipientAddress bob@domain.com -StartDate 09/29/2013 -EndDate 10/3/2013 | Where-Object {$_.Status -eq "Failed"} | Get-MessageTraceDetail | fl
To export either just add > tracelog.csv
to the end.