SOA
Start of Authority
Primary NS
Mailbox
hostmaster.nsone.net
Serial
1766406200
Refresh
43200
Retry
7200
Expire
1209600
Minimum TTL
3600
TXT
TXT Records
protonmail-verification=4c631a9bd5da0731de70bb983b0df2d8ef0a7569
v=spf1 include:_spf.protonmail.ch ~all