promotion.su.		30 IN SOA ns1.dess.ru. info.dess.ru. (
				1491151687 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				38400      ; minimum (10 hours 40 minutes)
				)

promotion.su.		30 IN TXT "v=spf1 a mx a:promotion.su ip4:213.248.50.80 ?all"

promotion.su.		30 IN A	213.248.50.80

Name servers:
promotion.su.		30 IN NS ns2.dess.ru.
promotion.su.		30 IN NS ns1.dess.ru.