module DMARC

Constants

VERSION: dmarc version

Public Class Methods

query(domain,resolver=Resolv::DNS.new) click to toggle source

Queries a domain for the DMARC record.

@param [String] domain

The domain to query DMARC for.

@param [Resolv::DNS] resolver

The resolver to use.

@return [String, nil]

The domain's DMARC record or `nil` if none exists.

@api semipublic

@since 0.3.0

# File lib/dmarc/dmarc.rb, line 20
def self.query(domain,resolver=Resolv::DNS.new)
  host = "_dmarc.#{domain}"

  begin
    return resolver.getresource(
      host, Resolv::DNS::Resource::IN::TXT
    ).strings.join
  rescue Resolv::ResolvError
  end
end