I have been asked recently for the required steps to configure Autodiscover when having Multiple SMTP namespaces, I have started writing few lines then upon checking my favorites I found a great bunch of blogs which explains the two possible solutions...

Nice one :) When the Hub Transport server is co-located with a Mailbox server that's a member of a DAG, there are changes in routing behavior to ensure that the resiliency features in both server roles will provide the necessary protection for messages...

from http://www.msexchange.org/articles_tutorials/exchange-server-2007/planning-architecture/uncovering-new-rpc-client-access-service-exchange-2010-part2.html On the CAS servers, for Mailbox connections, you need to use add a DWORD registry key named...

This problem occurs because Exchange Server 2010 does not issue UDP notifications to Outlook 2003. Therefore, Outlook 2003 cannot register to receive UDP notifications from Exchange Server 2010. Additionally, Outlook 2003 is not notified about changes...

In many of the disaster recovery scenarios in Exchange 2007, one of the most useful cmdlets is the “Move-mailbox” with the “ConfigurationOnly” parameter. With the “ConfigurationOnly” parameter the mailbox content is not physically moved but instead mailbox...