SOA
Start of Authority
Primary NS
Mailbox
hostmaster.nsone.net
Serial
1618598625
Refresh
7200
Retry
3600
Expire
604800
Minimum TTL
300
TXT
TXT Records
protonmail-verification=230a243fe0a049aa55b2e03114afd345b0c79bbf
v=spf1 include:_spf.protonmail.ch mx ~all