Exchange Server 2013 sends and receive emails on the wrong mail server .
We do have 4 exchange 2013 Cu19 servers.
These mail servers are located in the Netherlands, China and USA.
We have setup roundrobin dns with 4 different ip adresses on the record outlook.mydomain.com
subnet ordering is working good with the round robin and when checked with a an nslookup the correct Ip adres is given for that subnet.
Problem : outlook is slow, when checking the recource manager and network part of it we see outlook is sending data and receiving data from a total different exchange server other then the exchange server onsite in the given subnetmask order.
So its connecting to the mail server in the Netherlands and somehow its first sending and receiving its data to the server in China or in the USA.
THe mailbox from the user is just in the Netherlands and does not exsist in china nor in the USA?
Is there a way to control this behaviour?