2procent.pl.		86400 IN SOA ns1.industi.com. admin.industi.com. (
				2017020801 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

2procent.pl.		3600 IN	TXT "v=spf1 a mx ~all"

2procent.pl.		3600 IN	A 51.254.56.160

Mail exchangers:
2procent.pl.		3600 IN	MX 10 mx01.industi.com.

Name servers:
2procent.pl.		86400 IN NS ns1.industi.com.
2procent.pl.		86400 IN NS ns2.industi.com.