SOA
Start of Authority
Primary NS
Mailbox
cloud-dns-hostmaster.google.com
Serial
30
Refresh
21600
Retry
3600
Expire
259200
Minimum TTL
300
TXT
TXT Records
protonmail-verification=813059bc19105712cfd0eea9e9a8cb4b6e6e55e1
v=spf1 include:_spf.protonmail.ch mx ~all
A