Can I delete the Legacy SystemMailbox

I have successfully transitioned from Exchange 2003 to Exchange 2010.  Exchange 2003 has been removed from the old server.

Can I safely delete the Legacy SystemMailboxes?  (I have two.)  
SystemMailbox{2D2727E0-F8C6-43F1-AEEA-3D93EB0C588B} and
SystemMailbox{B81032E5-1675-4413-9FD8-E2938D117E60}
ArchitectChuckAsked:
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AkhaterConnect With a Mentor Commented:
if you moved them with 2k10 they shouldn't be showing as legacy.

honestly why bother just forget about them
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AkhaterCommented:
if exchange 2003 was removed then they should have been deleted with.
Exchange 2010 do have its own system mailboxes so if you are sure you are talking about 2003 ones yes you can delete them

if they are not taking space just keep them
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KolouschekCommented:
Hi,
Exchange 2010 has own system mailbox. If you have successfully migrated from 2003->2010 then you can delete them. You can not take care abou Legacy System Mailboxes.
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ArchitectChuckAuthor Commented:
I have attached an image of the Exchange Management Console under Recipient Configuration.

I am fairly certain these are Legacy accounts and no futher function, but I am nervous about removing them.  Is there an yweasy way to deactivaate them to make sure they are not used before deleting them?  When I tried to deactivate, you get all kinds of warnings that you will looze the settings.

 Exch 2010 Mgt Console/Recipient Config
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AkhaterCommented:
how are you still having legacy mailboxes if you removed your 2003 ?
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ArchitectChuckAuthor Commented:
I assume they were copied over with the rest of the mailboxes when I did the transition.  I can't remember how I did it, but I assume there was a wizard that came with Exchange 2010 to do that.
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