SOA
Start of Authority
Primary NS
Mailbox
hostmaster.systemdns.com
Serial
1791304704
Refresh
10800
Retry
3600
Expire
1209600
Minimum TTL
60
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
protonmail-verification=905bf4e1d65aff62d5215945d7ba660efd3fd246
A