Exchange 2010 renew crtificate

Hi,

my Exchange 2010 certificate will expire in 25 days.
What is the best way to renew the cert? We have our own certification authority on our Domain controller.

What if I click "renew certificate" in Exchange Management Console? Will the certificate bei renewed automatically?
Or do I have to request a new certificate and import that?

Will there be any downtime?

What is the best practice?

Best regards!
SystemadministrationAsked:
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AmitIT ArchitectCommented:
You need to request new certificate and then import it via EMC. Steps are here:
https://technet.microsoft.com/en-us/library/ee332322(v=exchg.141).aspx

This might be better:
https://www.youtube.com/watch?v=GD0Ro0etUPQ
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Will SzymkowskiSenior Solution ArchitectCommented:
Are you using your Internal CA for Exchange? If you use the ReNew Certificate button in Exchange 2013 this will renew the self-signed cert. I would assume that you would be using a 3rd party SSL cert for OWA and Outlook Anywhere externally?

If this is the case you will need to generate a new CSR from one of your Exchange servers and send it to the 3rd party provide which will then renew the cert for you.

Once you have the CER/CRT file you need to complete the certificate request.

You will also need to run the following command after you have imported the certificate on ALL of your CAS servers.

Enable-ExchangeCertificate -Thumbprint xxxxxxxxxxxxx -services "imap,pop,smtp,iis" 

Open in new window

Press Y to accept

There will not be able down time during this period.

Will.
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SystemadministrationAuthor Commented:
The seld signed cert is allright so I really do`nt need a third party cert.
So it would be enough to renew it.
I`ll have a look in a test lab later.
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SystemadministrationAuthor Commented:
I tried a renewal in a test lab.
There was a new req created and I requested a new cert in my authority.

After that I found an open request in Exchange Management Console. After I imported the new certificate i got asked if I want to overwrite to currentt standard cert for SMTP.

What do I have to do there?

At the moment I have 2 self-signed certs called "Microsoft Exchange" which have the services "SMTP, IMAP,POP" allocated and one nit self-signed which has "SMTP,POP,IMAP,IIS" allocated.

Where do I see which one is the standard cert for SMTP.
How does a certificate change influence my running environment.
For what is the certificate used, if SMTP is allocated.
Will I have any problems if I change service-allocation.

It would be interesting to hear, how you configured the certificates.
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Md. MojahidCommented:
you have to create only new cert request you cant renew here some step will help you.


http://stevehardie.com/2013/10/how-to-renew-a-godaddy-exchange-2010-ssl-certificate/
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