Exchange 2010 - which certificates do I migrate?

I am migrating from an Exchange 2007 server to an Exchange 2010 server.  I am ready to move the security certificate(s).

In the attached file, you will see several certificates.  Which of these do I need to move?  The one ending in 1146 seems to be the right one.  But what about some of the others.  Some are self-signed and not expired but are marked "invalid".  Others are both invalid and expired (I'm sure I can ignore these).

But are any of these worth worrying about?
certs.bmp
crapshooterAsked:
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MAS (MVE)Connect With a Mentor Technical Department HeadCommented:
You export all the certificates. Then delete the certificate which is not in use.
You can login to OWA and check which certificate in use.
You can export the certificates
http://msexchangeguru.com/2013/06/29/import-cert-e2013/

Then keep only the required certificates.
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Addy NadiaConnect With a Mentor ExpertCommented:
Hello,

If the certificate you are telling that is 1146, if that certificate is of Third Party,like globalsign, godaddy etc. then this is only you need to export to Exchange 2010 and enable the services which you need.

Other Certificates are of no use, if they are about to expired and Self Signed certificate will prohibit you to not use the Outlook Anywhere for the users. for that third party certificate is required.

Thanks
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suriyaehnopConnect With a Mentor Commented:
On Exchange Powershell which is you did, you can pipe to Formate-List, to view which one the third party SAN certificate which still valid.

or

On Exchange server

Type run | MMC | Add Certificate Management Console | Choose local

Expend the Personal | Certificate

- It will listed the certificate installed on Exchange server
- View the Third party certficate (e.g. Digicert,GoDaddy), verify the certificate still valid or not
- Right click on that certificate |Task |Export
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crapshooterAuthor Commented:
You were all very helpful.  Thanks for your assistance!
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MAS (MVE)Technical Department HeadCommented:
Glad to know your it is fixed
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