Ainda NAMED nao resolve POP e SMTP - Lame SERVER

Umas 2 vezes por dia, o named nao consegue resolver o POP e SMTP dos clients win, dando restart no named:
Sep 17 11:27:07 proxy named[662]: shutting down
Sep 17 11:27:07 proxy named[662]: no longer listening on 127.0.0.1#53
Sep 17 11:27:07 proxy named[662]: no longer listening on 192.168.1.2#53
Sep 17 11:27:07 proxy named[662]: no longer listening on 200.168.136.23#53
Sep 17 11:27:07 proxy named[657]: exiting
Set 17 11:27:07 proxy named: named shutdown succeeded
Sep 17 11:27:11 proxy named[1156]: starting BIND 9.1.2 -u named
Sep 17 11:27:11 proxy named[1156]: using 1 CPU
Sep 17 11:27:11 proxy named[1161]: loading configuration from '/etc/named.conf'
Sep 17 11:27:11 proxy named[1161]: the default for the 'auth-nxdomain' option is now 'no'
Set 17 11:27:11 proxy named: named startup succeeded
Sep 17 11:27:11 proxy named[1161]: no IPv6 interfaces found
Sep 17 11:27:11 proxy named[1161]: listening on IPv4 interface lo, 127.0.0.1#53
Sep 17 11:27:11 proxy named[1161]: listening on IPv4 interface eth0, 192.168.1.2#53
Sep 17 11:27:11 proxy named[1161]: listening on IPv4 interface eth1, 200.168.136.23#53
Sep 17 11:27:11 proxy named[1161]: command channel listening on 127.0.0.1#953
Sep 17 11:27:11 proxy named[1161]: running
Set 17 11:39:57 proxy named: named startup succeeded
Sep 17 11:40:04 proxy named[1269]: lame server on 'smtp.goncalvesadv.com.br.server.adv.com.br' (in 'com.br'?): 200.255.253.234#53-