cc. # # in_reply_to:: Returns a string that represents the in-reply-to. # message_id:: Returns a string that represents the message-id. # Envelope = Struct.new(:date, :subject, :from, :sender, :reply_to, :to, :cc, :bcc, :in_reply_to, :message_id) Date: Sat, 01 Jan 4501 05:00:00 +0000 Net::IMAP::Address represen