nsuem.ru.		3599 IN	SOA ns1.nsuem.ru. admin.nsuem.ru. (
				1401       ; serial
				1200       ; refresh (20 minutes)
				600        ; retry (10 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

nsuem.ru.		899 IN TXT "v=spf1 ip4:81.1.213.51 ip4:81.1.213.60 mx a -all"

nsuem.ru.		3599 IN	A 81.1.213.42

Mail exchangers:
nsuem.ru.		3599 IN	MX 20 smtp.nsuem.ru.
nsuem.ru.		3599 IN	MX 10 smtp.nsuem.ru.

Name servers:
nsuem.ru.		3599 IN	NS ns2.nsuem.ru.
nsuem.ru.		3599 IN	NS ns1.nsuem.ru.