SOA
Start of Authority
Primary NS
Mailbox
rz.csaonline.de
Serial
2017081001
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
60
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:81.27.162.64/26 ip4:81.27.162.8/29 ip4:213.166.247.0/25 mx -all
A