DNS issues for external mail from internal network

[Alex Thompson]

I have an Active Directory Win2K8 R2 server as the domain controller/DNS server for my home domain. I also registered a domain of the same name with Google Apps. I'm having trouble resolving the direct mail link from machines on the internal network. For example, when I go to mail.my_domain.com on a site external to my local network/domain, there are no issues. However, when I am on the internal network, it comes back with "Unable to load page" and pings/nslookups come back negative.

I wasn't able to find a way to designate a full URL as an alias inside the DNS Forward-Lookup zone for my domain to point to "mail.google.com/a/my_domain". I'm not even sure if that's something DNS is meant to do. I was able to add the 5 MX records successfully to both my internal DNS and with my domain provider (enom, in my case). When I do an "nslookup -q=mx" I get a success both internally and externally.

My temporary workaround was to stand up an IIS server on the domain controller, put a page out there bound to mail.mydomain.com that acts as a redirect to the full mail.google URL, and then put a CNAME record in the DNS for "mail" to point at the domain controller host. It works but this is probably not the right way of doing things. I'm just starting to learn Active Directory and DNS and this is a good exercise.

[Jay Lee]

Hi Alex,

  This is the Google Apps API Forum. General Google Apps issues including mail flow should probably be posted to the Google Apps Help Forum:

http://www.google.com/support/forum/p/Google+Apps?hl=en

off the top of my head, it sounds like you need to change where the CNAME for mail.mydomain.com points to on your internal DNS to be ghs.google.com.

Jay

[Alex Thompson]

Thanks, I'll repost over there.

[Heather Tollison]

no prob's
anntol...@gmail.com

On Fri, Dec 2, 2011 at 9:56 AM, Alex Thompson <alex_tho...@woh.rr.com> wrote:

Thanks, I'll repost over there.

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