Example for looking at Exchange message logs:


Get-MessageTrackingLog -start "8/11/2015 01:00AM" -Sender "user@example.com" | select eventid,source,sender,@{name="recipients";expression={$_.recipients -join " ; "}},messagesubject,timestamp,MessageLatency,MessageLatencyType | export-csv outfile.csv

The operative part here is this:

@{name="recipients";expression={$_.recipients -join " ; "}}