Is this named.conf correctly configured?

[Active8]

Thank you all guys for reply, now i will configure MX records to start using email.
By the way, any good tuto about how to configure Apache + Nginx as reverse proxy and load balancer?
Thanks in advance

For NGINX reverse proxy:

cd /usr/local/directadmin/custombuild
./build update
./build set webserver nginx_apache
./build nginx_apache
./build rewrite_confs