How to outpout messagetracking results to csv format so that each recipient smtp addresses is on a seperate row?

Question

I've searched far and wide today to no avail. The basic issue is someone sent an email to a DL, and I want a list of people who received this email. Simple right? While Powershell is AWESOME.. some simple things turn into nightmares.. case in point. Here
is my powershell command..
Get-ExchangeServer | where {$_.IsHubTransportServer -eq "true"} | sort-object Name | get-messagetrackinglog -ResultSize unlimited -sender [email protected] -EventID "deliver" -Start "05/14/2013 10:00:00 AM" -End "05/14/2013
12:00:00 PM" -messagesubject "I can't figure this out" | select-object timeStamp,eventid,ServerHostName,Sender,@{Name=”Recipients”;Expression={[string]::join(";", ($_.recipients))}} ,MessageSubject | Export-csv c:\sent1.csv -notypeinformation
This works, exactly as I expect but here is the BIG problem. #_.recipients is a string value, and this email was sent to A DL, with nested groups. So when I open the results, there are rows that have multiple recipient smtp addresses in the same row.
So the output looks like this in Excel.  Normally this works fine, but I think the issue is that this was a DL, and in the output CSV I see rows that contain 1 recipient and others may contain 20 on the same row. Any suggestions on how I can fix
this?
Timestamp        
Sender Recipients          
Recipients
5/14/2013 10:46 [email protected]      
[email protected];[email protected];[email protected]
What I want is this..
Timestamp        
Sender Recipients          
Recipients
5/14/2013 10:46 [email protected]      
[email protected];
5/14/2013 10:46 [email protected]      
[email protected];
5/14/2013 10:46 [email protected]      
[email protected] 

Answer 1

Hi,
Here you go.. 
I got the help from Vinith Menon who is part of Bangalore Powershell User Group. Thanks a lot Vinith :-)
Save the below script as ps1 and execute it, make sure you are matching the servername, date, subject
$new=get-messagetrackinglog -server "Server Name" -sender [email protected] -Start "5/12/2013 8:59:13 PM" -messagesubject "mytest" | select-object timeStamp,Sender,*subject,@{Name="Recipients";Expression={[string]::join(";", ($_.recipients))}}
foreach ($n in $new)
$values = $n | ForEach-Object {$_.recipients.split(";")}
$count = $n | ForEach-Object {$_.recipients.split(";")} | Measure-Object | select -ExpandProperty count
for ($i=0;$i-lt $count;$i++)
$array1 += $n | select timestamp,sender,*subject,@{Name=”Recipients”;Expression={$values[$i]}}
$array1
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