SOA
Start of Authority
Primary NS
Mailbox
hostmaster.1and1.com
Serial
2016052214
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
300
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.protonmail.ch ~all
protonmail-verification=9719600fde31301942655d66f574c3a08a5bb5bb
A
IPv4 Addresses
AAAA