Home » Kerio User Forums » Kerio Connect » Certificates and Kerio Connect - Outlook Connector (How to install a new certificate or change or configuration of an existing self signed certificate?)

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Hi All,

good day/evening , i hope you are all well. And lots of thanks in advance for your patience reading my post.

I was hoping i could get some feedback on experiences concerning adding a new certificate or changing an old certificate.

Why: Well we have been using a self-signed certificate named for example mail.xxxxxxxx.local , now that we have an official certificate (by certification Authority) we would want to change it into mail.xxxxxxxxx.com .

So now to my first Question: Can both certificates be "activated" at the same time, and if yes, do they work flawlessly parallel to each other?

If in case the certificates won't be able to run together, i would need to deactivate the old "self-signed" certificate first and then activate the "new" one (by the certificate authority), does this mean that i will have to change the address on each and every outlook connector for the accounts to continue working after the certificate change? Or is there a way to "roll out" the certificates via the Kerio Connect Server unto the Outllok clients?

Lots of thanks in advance for hints and help on this.

Best wishes and a pleasant day/evening to you all



[Updated on: Wed, 03 July 2013 16:41]


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Hi DT2009,

Sadly you cannot have multiple active certificates on Kerio Connect. You will need to create your new ssl cert, mark it as active and then stop/start Kerio Connect so that it can latch onto the new cert.

In regards to your users, they will need to change their server address in the Outlook clients as well as downloading a new copy of the ssl cert. This will need to be done to keep free/busy data working in Outlook.

I know its not ideal but this will the best way to ensure that the users do not suffer from issues with their calendar and looking up free/busy data for other users on the server.

I hope this helps.

All the best,
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