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Here is a previously answered question that is just as helpful:<br />
<br />
<a href="https://www.experts-exchange.com/questions/28382854/TLS-Certificate-Error-in-Exchange.html" rel="ugc">https://www.experts-exchange.com/questions/28382854/TLS-Certificate-Error-in-Exchange.html</a>
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Here is a previously answered question that is just as helpful:

https://www.experts-exchange.com/questions/28382854/TLS-Certificate-Error-in-Exchange.html [https://www.experts-exchange.com/questions/28382854/TLS-Certificate-Error-in-Exchange.html]

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Will this interfere with the certificate I already have &nbsp;in place through a third party for my IIS?
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Will this interfere with the certificate I already have  in place through a third party for my IIS?

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no the TLS certificate will not impact anything for IIS. <br />
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Also if you notice, the first step is to look for the actual expired certificate and then simply creating a new one.
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no the TLS certificate will not impact anything for IIS.

Also if you notice, the first step is to look for the actual expired certificate and then simply creating a new one.

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The error message is --there is no valid smtp transport layer security tls certificate for the fqdn of XXXXXXXXXXthe existing certificate fro that domain has expired. &nbsp;<br />
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When I download the certificates once a year, I install it into the IIS . &nbsp;I don't believe I have ever added the tls service in the exchange server itself. As it stands right now the current certificate is good until 11-11-14. &nbsp;I tried going into the exchange shell and enabling the exchange certificate, but I'm not positive on what the command line should be for TLS specifically?
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The error message is --there is no valid smtp transport layer security tls certificate for the fqdn of XXXXXXXXXXthe existing certificate fro that domain has expired.  

When I download the certificates once a year, I install it into the IIS .  I don't believe I have ever added the tls service in the exchange server itself. As it stands right now the current certificate is good until 11-11-14.  I tried going into the exchange shell and enabling the exchange certificate, but I'm not positive on what the command line should be for TLS specifically?

Event id 12016 Exchange

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

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.