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awucrail
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Outlook 2016 login to a Mailbox of Exchange 2016, but it won' t access the Public Folders of Exchange 2010

Exchange 2010 and Exchange 2016 Coexistence. Some users' mailbox have moved to Exchange 2016 from 2010. the company Public Folders still in Exchange 2010. those users are able to access the public folders of exchange 2010 by using outlook 2013, but outlook 2016.
as I know, Outlook 2016 access exchange 2016 server by using MAPI over HTTP. after I did disable the MAPI over HTTP in regedit, and force to use RPC over HTTP, the public folder showed up in outlook 2016, but it was unable to open.
is there anything I need to do next?
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awucrail

8/22/2022 - Mon
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awucrail

ASKER
Thank you Dave. I did run the command: Set-OrganizationConfig -MapiHttpEnabled $false. after I relogin to the outlook,  the outlook connection status showed protocol: HTTP. it is not RPC over HTTP.
Old User

That is the correct result, and the public folders?
awucrail

ASKER
No. it is still no public folders show up.
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Walt Forbes
Old User

This is a known issue MS were supposed to release a hotfix I am not sure if it is available.
Are you able to migrate the public folders to 2016?
awucrail

ASKER
Not yet. I need to move all mailbox to the exch 2016 first.
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awucrail

ASKER
Thanks Dave for the info. It looks like i need to do that.
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