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Exchange 2016 Co-Existing with Exchange 2010 - Wild Card Certs

We are  currently using a SAN Cert for Exchange 2010 and we plan to install 2 new Exchange 2016 servers into our organization.  The  plan is  to Co-Exist for 3 months before moving all the mailboxes to Exchange 2016. Can we use a "Wild Card cert" when we install the new Exchange 2016 servers?
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JimmyRiverside
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JimmyRiverside
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1 Solution
 
Todd NelsonSystems EngineerCommented:
Yes. Just export the cert from 2010 and import into both 2016 servers.
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Scott CSenior Systems EnginerCommented:
Todd's got the answer.  Please don't assign me points.  Just confirming.
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Todd NelsonSystems EngineerCommented:
Just make sure the internal and external URLs in Exchange are set to an FQDN with the domain name that is represented in the certificate.
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JimmyRiversideAuthor Commented:
Do we still have to export a new Wild Card Cert from the Exchange 2010 Servers to the new Exchange 2016 servers?  I'm confused on why we need to export from the 2010 servers?  It's seems all that needed to import and export from the new 2016 servers only???
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Todd NelsonSystems EngineerCommented:
However you do it the existing wildcard cert that is currently installed on the 2010 server needs to be exported (via EMC or EMS) and then imported to both 2016 servers (via EAC or EMS).
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JimmyRiversideAuthor Commented:
Now I understand why. You are right.
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