dnscontrol/documentation/functions/record/CAA_BUILDER.md

name	parameters	parameters_object	parameter_types
CAA_BUILDER	label iodef iodef_critical issue issuewild	true	label iodef iodef_critical issue issuewild string? string boolean? string[] string

DNSControl contains a CAA_BUILDER which can be used to simply create CAA records for your domains. Instead of creating each CAA record individually, you can simply configure your report mail address, the authorized certificate authorities and the builder cares about the rest.

Example

For example you can use:

CAA_BUILDER({
  label: "@",
  iodef: "mailto:test@domain.tld",
  iodef_critical: true,
  issue: [
    "letsencrypt.org",
    "comodoca.com",
  ],
  issuewild: "none",
})

The parameters are:

• label: The label of the CAA record. (Optional. Default: "@")
• iodef: Report all violation to configured mail address.
• iodef_critical: This can be true or false. If enabled and CA does not support this record, then certificate issue will be refused. (Optional. Default: false)
• issue: An array of CAs which are allowed to issue certificates. (Use "none" to refuse all CAs)
• issuewild: An array of CAs which are allowed to issue wildcard certificates. (Can be simply "none" to refuse issuing wildcard certificates for all CAs)

CAA_BUILDER() returns multiple records (when configured as example above):

• CAA("@", "iodef", "mailto:test@domain.tld", CAA_CRITICAL)
• CAA("@", "issue", "letsencrypt.org")
• CAA("@", "issue", "comodoca.com")
• CAA("@", "issuewild", ";")