dnscontrol/documentation/language-reference/domain-modifiers/SOA.md

name	parameters	parameter_types
SOA	name ns mbox refresh retry expire minttl modifiers...	name ns mbox refresh retry expire minttl modifiers... string string string number number number number RecordModifier[]

SOA adds an SOA record to a domain. The name should be @. ns and mbox are strings. The other fields are unsigned 32-bit ints.

{% code title="dnsconfig.js" %}

D("example.com", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  SOA("@", "ns3.example.com.", "hostmaster.example.com.", 3600, 600, 604800, 1440),
);

{% endcode %}

Notes

• The serial number is managed automatically. It isn't even a field in SOA().
• Most providers automatically generate SOA records. They will ignore any SOA() statements.
• The mbox field should not be set to a real email address unless you love spam and hate your privacy.

There is more info about SOA in the documentation for the BIND provider.