We had a bum server in a 2xWinTel cluster.Our primary finally ‘died’ yesterday.
Replaced with new Dell 1850 running 6.5.3 late last night.
This morning, noticed that were not routing mail to internet.
Bounced router several times.
Ran fixup on mail.box db’s (2 of them).
No luck.
Dug into DNS config for server.
No DNS IPs had been entered for the NIC used for cluster network.
Added that info and bounced router.
Woreking fine for now.
Also found the ini setting dnsserver=
Just FYI
jon