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Not that I know of. There are no GPO setting to control this, and afaik those settings are stored in the mailbox profile, not on the machine, so you cannot copy registry or config files.
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Hi Vasil thank you for your response. Do we have any third party tool which can do this? or can we do something at the transport rules in the exchange server 2010 or 2016?
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Transport rules do not offer anything related to this, it's a client-side functionality. Not sure about 3rd party tools., I havent seen any, but you can do a quick lookup in the Office marketplace or google...
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enough information to confirm an answer
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Hi all, I would like to color code all my external emails coming to my organisation. Am aware that I can do it via Conditional formatting in outlook. But I would like to push it to the entire organisation. is there a way in GPO? do we have any 3rd party tool to do this? &nbsp;<br />
Please advice.
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Hi all, I would like to color code all my external emails coming to my organisation. Am aware that I can do it via Conditional formatting in outlook. But I would like to push it to the entire organisation. is there a way in GPO? do we have any 3rd party tool to do this?  
Please advice.

How to color code my external emails in exchange 2010,2016 and Office 365

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.

Microsoft Office

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

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.