Exchange 2013 Multi-Tenancy autodiscover certificate warning

Hi,

On the server that will be running IIS and the Autodiscover redirect, I have install the HTTP Redirection module.
I have create a virtual website for Autodiscover redirection with the name AutodiscoverRedirection
In the binding section
            Type: http
            IP address: xxx.xxx.xxx.xxx     the IP is differtent from the autodiscover IP
I have create a virtual directory for Autodiscover redirection. Alias: Autodiscover

Configure HTTP Redirection for Autodiscover with the URL : https://mail.domain.com/autodiscover/autodiscover.xml. This address will match the ExternalURL.
and Redirect all request to exact destination is selected

I have create a CNAME DNS RECORD
autodiscover.mydomainname.com CNAME autodiscoverredirect.domain.com
_autodiscover._tcp.mydomainname.com      SRV      mail.domain.com.

Do you have a sollution?
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manuverhaegenSystem & Storage AdminAsked:
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Simon Butler (Sembee)ConsultantCommented:
Don't have this in your DNS if you are using SRV records:
autodiscover.mydomainname.com CNAME autodiscoverredirect.domain.com

CNAME is DNS only, it doesn't change the host name that the client connects to, so you get the SSL warning.
Autodiscover.example.com should NOT resolve on the internet at all if you are using SRV records.

Simon.
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manuverhaegenSystem & Storage AdminAuthor Commented:
Hi,

I have removed the SRV record but same warning
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Simon Butler (Sembee)ConsultantCommented:
That wasn't what I said to do.
I said to remove the CNAME.

By leaving the CNAME in place, all you are doing is pointing DNS traffic to the other host. It does NOT change the host name that the client connects to. Unless you have Autodiscover for that additional domain in the certificate (unlikely as you are using other methods) then you will get the warning.

The only way you can use HTTP redirect is by having the web site on its own unique IP address that does NOT have a binding to HTTPS on it, so that the client is unable to make a connection to https://autodiscover.example.com/ 
If you only have a single address for the server then you cannot use the HTTP redirect method and must use SRV records.

Simon.
0

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