chn.biz.		30 IN SOA ns1.siteground.net. admins.siteground.com. (
				45         ; serial
				86400      ; refresh (1 day)
				7200       ; retry (2 hours)
				3600000    ; expire (5 weeks 6 days 16 hours)
				86400      ; minimum (1 day)
				)

chn.biz.		30 IN TXT "v=spf1 +a +mx +ip4:35.214.55.134 
include:chn.biz.spf.auto.dnssmarthost.net ~all"

chn.biz.		30 IN A	35.214.109.17

Mail exchangers:
chn.biz.		30 IN MX 30 mx30.antispam.mailspamprotection.com.
chn.biz.		30 IN MX 20 mx20.antispam.mailspamprotection.com.
chn.biz.		30 IN MX 10 mx10.antispam.mailspamprotection.com.

Name servers:
chn.biz.		30 IN NS ns2.siteground.net.
chn.biz.		30 IN NS ns1.siteground.net.