SOA
Start of Authority
Primary NS
Mailbox
hostmaster.1and1.com
Serial
2017020422
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
300
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 a mx ip4:198.21.3.112 include:_spf.smtp.com include:_spf-us.ionos.com ~all
A