Get-mailboxStatistics Returns Contact Information??

Hi all -  I have a feeling this will be fairly quick.  We are running the attached scripts to identify mailboxes that have not been logged into for he past 6 months in order to facilitate the decommissioning of a legacy environment.  However, when we run it it appears to also return contacts from the targeted server.  We just want a list of actual mailboxes.  Is there a way to filter out contacts from actual mailboxes?

Or perhaps I should be running a different command? command
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I am not sure why it is returning contacts, but you can try the following
get-mailboxstatistics -server am-lon-ex02 | where {($_.LastLogonTime -lt (get-date).adddays(-180)) -and ($_.ObjectClass -eq "Mailbox")} | out-file mailboxes.txt

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Madan SharmaConsultantCommented:
Try this one.
[PS] C:\>Get-Mailbox -Server am-lon-ex02 | Get-MailboxStatistics | Format-Table DisplayName, ItemCount, StorageLimitStatus, LastlogonTime | Out-File C:\Login.txt

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It is not possible for this cmdlet to return contacts as there is no mailbox to pull statistics from
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