SOA
Start of Authority
Primary NS
Mailbox
hostmaster.1und1.com
Serial
2017060119
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
600
TXT
TXT Records
protonmail-verification=89dd27c9958cd747c42ed89ff5fd58e0207b7f38
v=spf1 include:_spf.protonmail.ch ~all
AAAA