donstu.ru.		30 IN SOA ns.dstu.edu.ru. postmaster.dstu.edu.ru. (
				2024110801 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				600        ; minimum (10 minutes)
				)

donstu.ru.		30 IN TXT "v=spf1 +mx -all"

donstu.ru.		30 IN A	83.234.174.17

Mail exchangers:
donstu.ru.		30 IN MX 10 mail.dstu.edu.ru.

Name servers:
donstu.ru.		30 IN NS nsrcoi.rcoi61.org.ru.
donstu.ru.		30 IN NS ns.dstu.edu.ru.