ptbs.pl.		30 IN SOA ns1.nazwa.pl. biuro.nazwa.pl. (
				2008133256 ; serial
				28800      ; refresh (8 hours)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

ptbs.pl.		30 IN TXT "v=spf1 mx a include:spf.protection.outlook.com -all"

ptbs.pl.		30 IN A	85.128.176.28

Mail exchangers:
ptbs.pl.		30 IN MX 0 ptbs-pl.mail.protection.outlook.com.

Name servers:
ptbs.pl.		30 IN NS ns1.nazwa.pl.
ptbs.pl.		30 IN NS ns2.nazwa.pl.
ptbs.pl.		30 IN NS ns3.nazwa.pl.