SOA
Start of Authority
Primary NS
Mailbox
cloud-dns-hostmaster.google.com
Serial
56
Refresh
21600
Retry
3600
Expire
259200
Minimum TTL
300
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.protonmail.ch mx ~all
protonmail-verification=d6ca654f7a14a7158fd3b51a0743d01453d96a39