How Outlook client queries AD for SCP record to get exchange configuration

Hello, As we know that Autodiscover is so important in exchange configuration so we have given some steps here that will help you to understand how should be autodiscover configured in exchange 2007/2010

Now see how a outlook client search for exchange

Internal Domain-joined Outlook
1) LDAP query AD for SCP(service connection point)
2) Outlook sorts results based on client site. in-site list, and out-site list. AutoDiscoverSiteScope
3) Outlook tries to connect to autodiscover URL generated from in-site list, if fails then…
4) Outlook tries https://autodiscover.domain.com/autodiscover/autodiscover.xml using DNS, if fails then…
5) Outlook tries HTTP redirect method, if fails then…
6) Outlook tries SRV record lookup
Internal Non domain-joined Outlook
1) Outlook tries SCP object in AD, which will fail… then
2) https://domain.com/autodiscover/autodiscover/xml
3) https://autodiscover.domain.com/autodiscover/autodiscover.xml
4) Outlook tries DNS SRV record