SOA
Start of Authority
Primary NS
Mailbox
hostmaster.1and1.com
Serial
2017122120
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
300
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
protonmail-verification=12cffc5b3700ac63ff01e8619a5af11c9d80a588
v=spf1 include:_spf.protonmail.ch mx ~all
A
IPv4 Addresses
AAAA