SOA
Start of Authority
Primary NS
Mailbox
dns.cloudflare.com
Serial
2417525289
Refresh
10000
Retry
2400
Expire
604800
Minimum TTL
1800
TXT
TXT Records
protonmail-verification=53df70f0f3f072cf2379dfe2c52afdacd48309ef
v=spf1 include:_spf.protonmail.ch ?all