What happens to encrypted mails when CA certificate expires in my Windows Domain

Posted by Wolfgang on Server Fault See other posts from Server Fault or by Wolfgang
Published on 2011-06-20T11:30:03Z Indexed on 2011/06/21 0:23 UTC
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Filed under:

windows-server-2008

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ssl-certificate

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certificate-authority

does anybody know what will happen to encrypted /signed mails when a root authority certificate expires in my domain network? Can the certificate still be validated from the clients and will the clients recognize that the certificate was valid when the mail was encrypted / signed?

Respectively what will happen when a migration to a new infrastructure will take place or if I install a new root-CA? Is there a need to also migrate the expired root certificate?

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