strongsystems.net.	30 IN SOA NS17.WORLDNIC.COM. namehost.WORLDNIC.COM. (
				117032313  ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

strongsystems.net.	30 IN TXT "v=spf1 include:emailsrvr.com ~all"

strongsystems.net.	30 IN A	50.87.144.110

Mail exchangers:
strongsystems.net.	30 IN MX 10 mx1.emailsrvr.com.
strongsystems.net.	30 IN MX 20 mx2.emailsrvr.com.

Name servers:
strongsystems.net.	30 IN NS ns18.worldnic.com.
strongsystems.net.	30 IN NS ns17.worldnic.com.