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Correct. There are no Exchange 2007 roles and everything is on &nbsp;2013. Unfortunately, I'm not sure if 2007 was uninstalled or was gracefully removed. I can confirm all mail server roles are on 2013. I can also point out that I have corrected a few items including upgrading AD objects to 2013. <br />
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Based on your response it's safe to remove AD Public Folder objects.
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Correct. There are no Exchange 2007 roles and everything is on  2013. Unfortunately, I'm not sure if 2007 was uninstalled or was gracefully removed. I can confirm all mail server roles are on 2013. I can also point out that I have corrected a few items including upgrading AD objects to 2013.

Based on your response it's safe to remove AD Public Folder objects.

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This new company I work for is running Exchange 2013 CU8. They were previously running Exchange 2007. While doing a review I need some help clarifying my understanding cleaning up Exchange System Objects in Active Directory. I found over 300 Public objects in the Microsoft Exchange System Objects. By looking at our current Public Folders these no longer exist. Is it safe to delete or remove this and will if affect our current Public Folders? The object icons look off and my understanding that Exchange 2013 doesn't use public folder databases.
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This new company I work for is running Exchange 2013 CU8. They were previously running Exchange 2007. While doing a review I need some help clarifying my understanding cleaning up Exchange System Objects in Active Directory. I found over 300 Public objects in the Microsoft Exchange System Objects. By looking at our current Public Folders these no longer exist. Is it safe to delete or remove this and will if affect our current Public Folders? The object icons look off and my understanding that Exchange 2013 doesn't use public folder databases.

Exchange System Objects in Active Directory?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.