we are currently running exchange with fe/be configuration.
the fe acts as the bridgehead and fowards all mail to message one. as a smart host.
the problem is that it tends be a little slow and mail tends to sit for a few min. in the que.
there is an alternate option to use a private DNS.
so my question is the following.
once i add the private dns under advanced config. on delivery tab for the F/E smtp virtual server.
i have to remove the smart host, BUT do i leave the smtp connector in place and just switch to use DNS to route mail.
do i remove the smtp connector completely ?
also i have to restart the front end server but do i need to restart the backend servers aswell ?