In earlier blog posts I’ve discussed other DNS records such as the TXT SPF record. This is a new but very important record that you will want in place for your domain.
Here’s a list of great resources that describe this in detail and include guidance to manually create and publish the record to whomever is hosting your DNS records for the domain.
Sean Daniels very good explanation with examples
Both of those will fail in the default SBS case as the info is actually at https://remote.contoso.com/autodiscover. With Outlook 2007 SP1 and above, outlook adds a third check. It checks a SRV record, or service. When you run the Internet Address Management wizard with a partner, this SRV record is automatically set. It looks like:
_autodiscover._tcp IN SRV 0 0 443 remote.contoso.com
This blog post goes into what the syntax means piece by piece …a tech deep dive meant to tie in their chat client software to Google Apps. They do have a tester there too. Realize that in the GoDaddy record wizard that for SBS you enter @ for the Name field which represents your domain name.
Susan Bradley post on the same including a Go Daddy creation guide
Microsoft KB 940881- A new feature is available that enables Outlook 2007 to use DNS Service Location (SRV) records to locate the Exchange Autodiscover service
Test your record here – https://www.testexchangeconnectivity.com/
double-check to ensure that it was correctly published by those hosting your domain’s DNS records – my fav http://www.intodns.com (but I don’t see SRV record reported) – tech sent me to http://network-tools.com but none of the tests there seemed to fit