ptma.pl.		30 IN SOA ns1.netstrefa.pl. admin.rxnet.pl. (
				2024043001 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

ptma.pl.		30 IN TXT "v=spf1 ip4:217.17.41.136 include:_spf.s8.netstrefa.pl +a +mx
+ip4:217.17.41.142 +ip4:54.36.186.237 ~all"

ptma.pl.		30 IN A	217.17.41.136

Mail exchangers:
ptma.pl.		30 IN MX 0 ptma.pl.

Name servers:
ptma.pl.		30 IN NS ns1.netstrefa.pl.
ptma.pl.		30 IN NS ns2.netstrefa.pl.