Trying to pull emails for last 3 months on Exchange 2013 server but doesn't pull older emails.

Problem

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Unable to pull emails for last 3 months on Exchange 2013 server but doesn't pull older emails.

I've Exchange 2013 Version 15.0 ‎(Build 1076.9)‎ latest CU.

Get-MessageTrackingLog -Recipients xxxx@ABC.COM -Start "04/01/2015 00:01 AM" -End "07/01/2015 10:30 PM" -EventId RECEIVE -Resultsize unlimited| select EventId, TimeStamp,sender, @{N="Recipients";E={$_.recipients -join ","}}, MessageSubject

It just pulls email after 10/06/2015 date. doesn't pulls email before that date. We have Message tracking logs age set to 90 days and I can see logs present on the server itself.

I've tried command without entering any date but doesn't like that as well.

@BALA