sonar54.ru.		30 IN SOA ns1.teleit.ru. info.sonar54.ru. (
				2022092401 ; serial
				7200       ; refresh (2 hours)
				540        ; retry (9 minutes)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

sonar54.ru.		30 IN TXT "v=spf1 mx a ptr ip4:136.243.173.198/32 -all"

sonar54.ru.		30 IN A	136.243.173.198

Mail exchangers:
sonar54.ru.		30 IN MX 10 mail.sonar54.ru.

Name servers:
sonar54.ru.		30 IN NS ns2.afraid.org.
sonar54.ru.		30 IN NS ns1.teleit.ru.