SOA
Start of Authority
Primary NS
Mailbox
cloud-dns-hostmaster.google.com
Serial
13
Refresh
21600
Retry
3600
Expire
259200
Minimum TTL
300
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 +mx +a +ip4:192.185.4.99 include:_spf.protonmail.ch ~all
protonmail-verification=b791150020935e7bb2b3ad55c09b562577d0ab3d
A