pfcberkut.ru.		30 IN SOA firstvds.ru. root.example.com. (
				2024011500 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

pfcberkut.ru.		30 IN TXT "v=spf1 ip4:82.146.52.144 a mx ~all"

pfcberkut.ru.		30 IN A	82.146.52.144

Mail exchangers:
pfcberkut.ru.		30 IN MX 10 mail.pfcberkut.ru.
pfcberkut.ru.		30 IN MX 20 mail.pfcberkut.ru.

Name servers:
pfcberkut.ru.		30 IN NS ns2.example.com.
pfcberkut.ru.		30 IN NS ns1.example.com.