create_and_upload_raw_email!

# File actionmailbox/app/models/action_mailbox/inbound_email/message_id.rb, line 37
      def create_and_upload_raw_email!(source)
        ActiveStorage::Blob.create_and_upload! io: StringIO.new(source), filename: "message.eml", content_type: "message/rfc822",
                                               service_name: ActionMailbox.storage_service
      end