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Exchange 2003 Smart host or Private DNS question

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.
or
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 ?
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mndthegap1
Asked:
mndthegap1
1 Solution
 
shahsejalCommented:
You may leave the smtp connector in place and just switch to use DNS to route mail.
Even if you restart only Microsoft Exchange Routign Engine and SMTP services and run ipconfig /flushdns and ipconfig /registerdns commands, it should be ok. No need to reboot the servers
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