We used two servers to build a Exchange 2010 DAG and CAS array, do not install NLB service.
And use below command to make Outlook to use primary server to send email.
Set-OutlookProvider EXPR –Server server1.mydomain.com
We do not want load balancing and only want to have auto fail-over to server2 if server1 is down.
However, from Exchange tracking log, there are some users using server2 to send email.
Any idea how to force all Outlook to use primary server as SMTP service by default?