open.net.		30 IN SOA ns1.kpn.net. zonemaster.kpn.com. (
				2024042501 ; serial
				28800      ; refresh (8 hours)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

open.net.		30 IN TXT "v=spf1 include:spf.ews.kpnxchange.com ?all"

Mail exchangers:
open.net.		30 IN MX 10 mx.kpnmail.nl.

Name servers:
open.net.		30 IN NS ns1.kpn.net.
open.net.		30 IN NS ns11.kpn.net.