$TTL 3600 @ SOA dns.jones.dk. dr.jones.dk. ( 2013072401 ; serial 14400 ; refresh 3600 ; retry 1209600 ; expire 900 ) ; Negative Cache TTL ; Public zone roots, mailhubs and non-CNAME services (use A) NS dns.jones.dk. NS ns.bitbase.dk. ; NS ns.superserver.dk. NS ns.homebase.dk. A 80.68.88.141 MX 0 . SPF "v=spf1 -all" ; External hosts (use A and TXT-wrapped CNAME or PTR) ; Public local hosts (use A) ; Public wildcards of zone roots, hosts and non-CNAME services (use A and TXT or CNAME) * CNAME @ ; Public CNAME-mapped PTR records ; Public authentication-related (LDAP and Kerberos) records ; External services (use CNAME to local A, or A and TXT-wrapped CNAME, or CNAME if ok with partner) ; Public local services (use CNAME) ; Private zone roots, mailhubs and non-CNAME services (use A) ; Private hosts (use A) ; Private wildcards of zone roots, hosts and non-CNAME services (use CNAME) ; Private CNAME-mapped PTR records ; Private services (use CNAME) ; Private CNAME-mapped PTR records