mode-exclusive.nl.	30 IN SOA ns3.firstfind.nl. hostmaster.firstfind.nl. (
				2021041301 ; serial
				16384      ; refresh (4 hours 33 minutes 4 seconds)
				2048       ; retry (34 minutes 8 seconds)
				1048576    ; expire (1 week 5 days 3 hours 16 minutes 16 seconds)
				14400      ; minimum (4 hours)
				)

mode-exclusive.nl.	30 IN TXT "v=spf1 a mx include:_spf.yourfilter.nl -all"

mode-exclusive.nl.	30 IN A	5.157.87.204

Mail exchangers:
mode-exclusive.nl.	30 IN MX 10 primary.yourfilter.nl.
mode-exclusive.nl.	30 IN MX 20 fallback.yourfilter.nl.

Name servers:
mode-exclusive.nl.	30 IN NS ns4.firstfind.nl.
mode-exclusive.nl.	30 IN NS ns3.firstfind.nl.
mode-exclusive.nl.	30 IN NS ns5.firstfind.net.