Issue when running get-mailbox from EMS. Can not see all mailboxes even the mailboxes on the Exchange 2010.

Issue when running get-mailbox from EMS. Can not see all mailboxes even the mailboxes that are on the Exchange 2010. I am suppose to be able to get a list of NOT only Exhcange 2010 but also 2003 mailboxes.


So, I have Exchange 2010 SP3 setup as Hybrid Server to work with Exchange 2003 servers an office 365. I have no problem seeing mailboxes from EMC and moving them from 2003 and 2010, but when I run the command from EMS I only see like 4 mailboxes. Even on the Hybrid server (Exchange 2010) I have more mailboxes….but from EMS I can’t see them.  
I need to make the script work but obviously it wont work unless I will fix this issue.

Below are only few mbx that I can see:
adfs
DiscoverySearchMailbox...
Exchange
OnPrem Test2
test
claudiamcseAsked:
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RadweldConnect With a Mentor Commented:
One question would be, did you install Exchange 2010 into the same Domain as Exchange 2003? if you have a forest with multiple sub domains and Exchange 2010 was installed into a different sub domain then by default you will only see mailboxes that exist in that domain. You can configure the recipient scope to be forest wide though,

Set-AdServerSettings -ViewEntireForest $true -PreferredGlobalCatalog gc1.contoso.com

http://technet.microsoft.com/en-us/library/bb124527(v=exchg.141).aspx
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claudiamcseAuthor Commented:
Also, it tells me when I use the switch -identity for the mailbox that indeed exist on the Exchange 2010 server that the object could not be found.....Very strange.
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claudiamcseAuthor Commented:
Excellent!! Thank you so much
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