ab.ru.			30 IN SOA marr.ab.ru. postmaster.marr.ab.ru. (
				2024093001 ; serial
				28800      ; refresh (8 hours)
				7200       ; retry (2 hours)
				2592000    ; expire (4 weeks 2 days)
				345600     ; minimum (4 days)
				)

ab.ru.			30 IN TXT "v=DMARC1; p=none;"
ab.ru.			30 IN TXT "v=spf1 ip4:212.94.96.73 include:_spf.google.com ~all"

Mail exchangers:
ab.ru.			30 IN MX 10 relay.ab.ru.

Name servers:
ab.ru.			30 IN NS marr.ab.ru.
ab.ru.			30 IN NS www.altnet.ru.