Exchange 2010 - Office 365 Exchange Online - Message History

Hello,

Our HR department is asking me to get amass emails from anyone in our organization to an external email user address.  The external user is an employee but was placed at a customer location and the customer provided their email account.  We are being asked to provide all the emails that were sent to their person for a 1 year time period.
During this time period we migrated from Exchange 2010 on-prem to Office 365 Exchange Online (about 4 months ago).  We still have out Exchange 2010 server and literally just powered on the server to prepare for looking at logs/emails.
Message Trace gives me all the emails that were sent to this person but our HR department wants the actual message contents, the email body, what was said in the email.
I have never been asked this question and other than message trace I am not sure what built-in Exchange 2010/Office 365 tools allow me to look at the email messages.
Looking for a solution to this issue for both Exchange 2010 and Office 365

thanks in advance
EA-170Asked:
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Scott CConnect With a Mentor Senior Systems EnginerCommented:
Understood.  I just wanted to clear up that command.

What you are looking for is Multi Mailbox Search.

https://technet.microsoft.com/en-us/library/dd335072(v=exchg.141).aspx

About half way down you will see you can find emails sent to/from a specific email address.

Now if these messages were deleted from the sender's mailbox, they won't show up in the search.
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Gaurav SinghConsultantCommented:
if you have old exchange then you can export his Mailbox to PST via Export-Mailbox command.
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Scott CSenior Systems EnginerCommented:
Actually the correct command is "New-MailboxExportRequest"...https://technet.microsoft.com/en-us/library/ff459227(v=exchg.141).aspx

@Gaurav...please be careful to provide correct instructions.   If the wrong one is used, it can be disastrous in some cases..

Now to the original question...take a look here...http://msexchangeguru.com/2011/05/10/track-emails/

This script should allow you to track emails sent to a specific person.
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EA-170Author Commented:
The employee didn't have a mailbox on our email server, their mailbox was external to our email.  Their mailbox was provider by another organization.  However since they were our employee our HR is requesting all emails sent to this person from our email server.
There is some legal issue going on and apparently emails are being requested.
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EA-170Author Commented:
@ScottCha  - like the name but while that link gives me the message tracking I don't see where it gives me the message contents.

IS there a tool/command that will provide me what I am looking for?
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EA-170Author Commented:
Hi Scott - looks like you posted while I was still posting back - I will check out the Mult-Mailbox Search
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Scott CSenior Systems EnginerCommented:
ok.  I figured our posts crossed.  I think that will give you what you are looking for.
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EA-170Author Commented:
Scott - the multi mailbox search looks to be a winner for our on-prem server.  Does Office 365 have a similar tool that you know of?  We subscribe to the e2 non-profit subscription so we currently don't have access to the e-discovery feature on office 365.
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Adam BrownConnect With a Mentor Sr Solutions ArchitectCommented:
You do have access to E-Discovery on Office 365. You just have to make sure your account is in the Discovery Management group in Exchange Online. Go to Exchange Admin -> Permissions -> Admin Roles -> Discovery Management and make sure your account is in that. Once it is, log out and back in and you should then have access to the Content Search controls in Security and Compliance Admin portal off the main Office 365 admin center. From there you can do a multi-mailbox search for messages sent to his external address.
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EA-170Author Commented:
thank you for the assistance the multi mailbox search was the winner
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