500-0-500.ru.		3600 IN	SOA cp.webhost1.com. tech.webhost1.com. (
				2021020200 ; serial
				3600       ; refresh (1 hour)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

500-0-500.ru.		3600 IN	TXT "v=spf1 ip4:91.236.136.40 ip4:91.236.136.152 a mx
~all"

500-0-500.ru.		3600 IN	A 91.236.136.152

Mail exchangers:
500-0-500.ru.		3600 IN	MX 10 mail.500-0-500.ru.

Name servers:
500-0-500.ru.		3600 IN	NS ns2.webhost1.com.
500-0-500.ru.		3600 IN	NS ns1.webhost1.com.
500-0-500.ru.		3600 IN	NS ns4.webhost1.org.
500-0-500.ru.		3600 IN	NS ns3.webhost1.org.