Issue #11312 has been reported by Hal Brodigan.

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Feature #11312: Add Resolv::DNS::Resource::IN::SPF
https://bugs.ruby-lang.org/issues/11312

* Author: Hal Brodigan
* Status: Open
* Priority: Normal
* Assignee: 
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The SPF type record (RFC4408 Section 3.1.1) is quite common now. The resolv library should probably support it. As a workaround I monkey patched in the resource class:

    class Resolv::DNS::Resource::IN::SPF < Resolv::DNS::Resource::IN::TXT
      # resolv.rb doesn't define an SPF resource type.
      TypeValue = 99
      ClassValue = Resolv::DNS::Resource::IN::ClassValue
    
      Resolv::DNS::Resource::ClassHash[[TypeValue, ClassValue]] = self
    end

I could formalize my monkeypatch into an actual patch. I would just need to know whether SPF should be listed in the `ClassInsensitiveTypes` array.



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