I am using 2 Kemp Load balancers in front of an Exchange 2013 DAG. I configured a virtual service using the Kemp template "Exchange 2013 SMTP" with the two Exchange Servers a real Servers.
Then I set on of the Exchange Servers in maintenance mode. While this Server is in maintenance mode he is not accepting smtp traffic anymore.
Unfortunately Kemp does not recognize this state and still forwards emails to this Server. The result is, that these emails are hanging in the queue of the sending server.
How can I configure health checks for the transport server services?