optina-pustin.ru.	30 IN SOA ns1.bernet.ru. hostmaster.optina-pustin.ru. (
				2024081800 ; serial
				3600       ; refresh (1 hour)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

optina-pustin.ru.	30 IN TXT "v=spf1 a mx ip4:185.12.92.157 a:mail.host3.bernet.ru
~all"

optina-pustin.ru.	30 IN A	185.12.92.157

Mail exchangers:
optina-pustin.ru.	30 IN MX 10 optina-pustin.ru.

Name servers:
optina-pustin.ru.	30 IN NS ns1.bernet.ru.
optina-pustin.ru.	30 IN NS ns2.bernet.ru.