Exchange 2007 certificates

While I was having lunch with one of our Exchange Engineers today I asked "what is the most common support call that comes in for Exchange 2007?".

The answer was certificates - customers can be confused about what type of certificate to get, what hostnames are used (most customers use different namespace internally than they do externally), what requirements TLS has, and of course they are completely unaware of things like Subject Alternative Name.

Fortunately there is a great post at You Had Me At EHLO that explains more about this issue and how it can affect your Exchange deployment.

https://msexchangeteam.com/archive/2007/07/02/445698.aspx

 

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