23 lines
392 B
Ruby
23 lines
392 B
Ruby
# frozen_string_literal: true
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class DomainResource
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attr_reader :domain
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RESOLVE_TIMEOUT = 5
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def initialize(domain)
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@domain = domain
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end
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def mx
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Resolv::DNS.open do |dns|
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dns.timeouts = RESOLVE_TIMEOUT
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dns
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.getresources(domain, Resolv::DNS::Resource::IN::MX)
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.to_a
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.map { |mx| mx.exchange.to_s }
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.compact_blank
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end
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end
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end
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