ych-group.ru.		30 IN SOA srv21.host-food.ru. admin.host-food.ru. (
				2020110714 ; serial
				3600       ; refresh (1 hour)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

ych-group.ru.		30 IN TXT "v=spf1 ip4:91.227.16.31 ip4:91.227.16.31 a mx ~all"

ych-group.ru.		30 IN A	91.227.16.21

Mail exchangers:
ych-group.ru.		30 IN MX 20 mail.ych-group.ru.
ych-group.ru.		30 IN MX 10 mail.ych-group.ru.

Name servers:
ych-group.ru.		30 IN NS dns0.host-food.ru.
ych-group.ru.		30 IN NS dns1.host-food.ru.