pb.cz.			30 IN SOA ns1.internetpb.cz. hostmaster.pb.cz. (
				2025112102 ; serial
				300        ; refresh (5 minutes)
				300        ; retry (5 minutes)
				1209600    ; expire (2 weeks)
				300        ; minimum (5 minutes)
				)

pb.cz.			30 IN TXT "v=spf1 a mx include:_spf.pb.cz include:_spf.google.com
include:spf.protection.outlook.com include:_spf.centrum.cz ~all"

pb.cz.			30 IN A	185.102.21.169

Mail exchangers:
pb.cz.			30 IN MX 100 devil.pb.cz.
pb.cz.			30 IN MX 200 smx.pb.cz.

Name servers:
pb.cz.			30 IN NS ns2.internetpb.cz.
pb.cz.			30 IN NS ns1.internetpb.cz.