synthelp.ru.		30 IN SOA firstvds.ru. s_wr.mail.ru. (
				2016031715 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

synthelp.ru.		30 IN TXT "v=spf1 ip4:149.154.70.2 a mx ~all"

synthelp.ru.		30 IN A	149.154.70.2

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

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