Exchange Server 2010 Setup With DynDNS & SubDomain Creation

Posted on 2012-08-21
Last Modified: 2012-08-27
Hi All

I am trying to setup my own Exchange 2010 Lab Environment. I do not have a Public IP or Static IP so I am going to use Dynamic DNS. I need assistance in setting up Exchange 2010.
I have completed the Typical Installation of Exchange Server 2010 and Internally I can send and receive Emails. But I want Emails to be public as well. So I have registered my domain name with GoDaddy. Now I want to create another subdomain such as "".

Firstly, I have an option in GoDaddy's Domain Manager that says create Forward SubDomains. Here i can create the subdomain but it is asking me to forward to another http address which I have no clue about. So I need to know how to properly setup the subdomain "" for an Exchange Setup.

Then I have registered with for the DynamicDNS Setup. Here it actually does a sync with the IP that is changing to a hostname. This is what i understand.

Now, I want this "" to be always in sync with my dynamic IP Address given by the ISP. So that I can publicly send emails and as well as use OWA via Internet.

Please help me.

Question by:brandsco
    LVL 20

    Expert Comment

    you need to create an mx record at godaddy to point to which inturn should point to
    LVL 1

    Author Comment

    In Go Daddy, while creating an MX Record, which IP Address should i enter?
    Is it the current dynamic IP or the dyndns hostname ?
    LVL 20

    Accepted Solution

    you need the mx record to point to your dyndns name - you cant point it to the ip as that will regularly change.
    personally i would speak to you ISP and get a fixed Ip address or you will have problems as dns records get cached all over the place, so even using dyn dns some people will have trouble emailing you

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