crblen.ru.		30 IN SOA firstvds.ru. info.itmed.su. (
				2019020606 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

crblen.ru.		30 IN TXT "v=spf1 ip4:188.120.236.236 a mx ~all"

crblen.ru.		30 IN A	188.120.236.236

Mail exchangers:
crblen.ru.		30 IN MX 10 mail.crblen.ru.
crblen.ru.		30 IN MX 20 mail.crblen.ru.

Name servers:
crblen.ru.		30 IN NS ns1.firstvds.ru.
crblen.ru.		30 IN NS ns2.firstvds.ru.