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Monday, July 22, 2024

How to Create Autodiscoverredirect record for Multi Tenant Scenario in Exchange 2013

Lets say you are hosting many domains in one Exchange Server (Multi-Tenant) .

SSL cert has been Configured, With these below entries for example .



In Simple Words – Using AutoDiscover with large numbers of accepted domains


Now for every domain you host . you cannot keep adding their entries in your SSL . that’s not going to benefit you . the recommended method is using the Autodiscoverredirect method .

like for the every domain you host . you can create a CNAME record.

autodiscover.DomainA.com CNAME to autodiscoverredirect.careexchange.in

So that you can get the autodiscover settings from your primary domain .

And Outlook 2007 . 2010 , 2013 can understand it . so that your Outlook can be configured automatically .

Click “Add Website”


“Type Autodiscoverredirect”

Create a Folder “AutodiscoverRedirect” in the below location



Now In that website – Add Http redirect URL

As Primarydomain (Hosterdomain)  https://mail.careexchange.in/autodiscover

Click on Apply



Add the Additional IP on the NIC . so that the IP listens .

Lets see how to create a CNAME record for example.

Create a CNAME Record for Every Tenant to use the Primary Auto discover Service

Lets say you host DomainA,DomainB,DomainC

In Domain A public DNS

autodiscover.DomainA.com CNAME to autodiscoverredirect.careexchange.in

In Domain B public DNS

autodiscover.DomainB.com CNAME to autodiscoverredirect.careexchange.in

In Domain C public DNS

autodiscover.DomainC.com CNAME to autodiscoverredirect.careexchange.in

Wait for DNS propagation for 2 to 4 hours .

To Verify the auto discover setting succeeded properly .

You can use Below Microsoft website .


Hope this information is Useful.

Still there are other methods like SRV methods , which doesn’t require a additional public IP

But few active sync phones doesn’t support SRV method . E.g Iphone.

Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.

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  1. Thanks
    always good to remember
    the only downside of this approach is that prompt from outlook when you do redirect…

  2. We have setup autodiscover redirection properly (I guessed) by:

    Creating a CNAME from
    AliasName: autodiscover.tenant-domain.com TO
    PrimaryName: autodiscoverredirection.hostname.com.

    Then doing a re-direction to https autodiscover service.

    All seems to be working properly, however, when I open Outlook, it still shows the pop out saying “autodiscover.tenant-domain.com – The name of the security certificate is invalid or does not match the name of the site”.

    The autodiscover redirection is indeed working properly, that’s why the autodiscover is working, however it is still trying to match autodiscover.tenant-domain.com to the certitifcate instead of matching the re-directed url, which is autodiscover.hostname.com.

    Could anyone advise what is wrong? Or anyone who knows how to correct it can contact me? 🙂

  3. Thanks For Your Reply . I tried with Outlook 2010 Also , Same Error Msg 🙁 .. I also tried Test-OutlookConnectivity on my exchange server it gives a waston dump error . Please Help

  4. Hello Satheshwaran,

    I have the same problem, only I don’t even get that far. I simply can’t get use it for other domains then our own (which works fully on autodiscover).

    I’ve got the redirection and everything is working fine. the testconenctivity fails because ‘the name autodiscover.farmer.eu does not match anything in the valid SSL-certificate autodiscover.ourcompany.nl’

    the redirect works, that I know for a fact, but the certificate doesn’t ‘see it’ I have the feeling.

    • hi i have my autodiscover setup correctly but it takes about 5 minutes to discover settings, local and external on outlook 2013. before using websitepanel to setup a multi tenant i had it hosed on our network for just our company and autodiscover local and external was quick. please advise any thing i can do/test to figure out whats the delay?

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  13. hi
    great article.thanks. would you be more specific about “Add the Additional IP on the NIC . so that the IP listens .”?
    you mean I have another Ip in the range of IP which is already set on my NIC? why?

  14. its looks fine but only with autodiscover service …. How we can configure multiple namspace/URL’s (in case of multiple accepted domains)for other exchange services e.i outlook anywhere,EWS,RPC/http, Mapi/http, active sync etc. (or we do not need to configure namespace for other all secondary accepted domains)

    For example;
    my primary domain = ExchangeSite.com
    Other Accepted Domains are ; abc.com , xvz.com and bca.com

    i will configure all exchange services virtual directories with my primary domain ; i.e
    etc etc

    My question is ;
    As outlook access multiple services/URL’s to access or connect with exchange server.

    During Outlook configuration using autodiscover All other Accepted domain users (Secondary) will be access to exchange services using primary domain URLS (ExchangeSite.com)?

  15. Satheshwaran,

    If you are using a NAT do you need 2 separate public IP addresses, or can you just forward the port 80 traffic to the other IP address that has been added to the exchange server. –> = Exchange –> = Autodiscover


    • That should work as well. but i recommend to use two. cause HTTP Mapi also works on 80 . may conflict and create issues.


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