fisica.ru.		30 IN SOA ns1.rsnx.ru. arik.fisica.ru. (
				2021011983 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

fisica.ru.		30 IN TXT "v=spf1  +a +mx ~all"

fisica.ru.		30 IN A	89.253.224.41

Mail exchangers:
fisica.ru.		30 IN MX 100 mail.fisica.ru.

Name servers:
fisica.ru.		30 IN NS ns1.rsnx.ru.
fisica.ru.		30 IN NS ns2.rsnx.ru.