SOA
Start of Authority
Primary NS
Mailbox
postmaster.siegerink.com
Serial
2015012100
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
900
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:spf.protection.outlook.com a:mx1.contact123.nl ~all
A