$ORIGIN .

$TTL 300 ; 5 minutes

example IN SOA mname1. . (

1 ; serial

20 ; refresh (20 seconds)

20 ; retry (20 seconds)

1814400 ; expire (3 weeks)

3600 ; minimum (1 hour)

)

example. NS ns3.example.

ns3.example. A 10.53.0.3

$ORIGIN example.

a A 10.1.0.1

MX 10 intmail.example.

intmail A 10.1.0.2