SOA
Start of Authority
Primary NS
Mailbox
hostmaster.server1.veilig-online.com
Serial
2020051100
Refresh
14400
Retry
3600
Expire
1209600
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:mxo.ispnoc.eu a mx ip4:46.249.37.201 ~all
A