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Interesting article about message threading: http://www.jwz.org/doc/threading.html http://www.jwz.org/doc/threading.html

• makeshifthoop 12y ago
  That article is a classic, and is used by most people I've talked to implement threading if they can't rely on the IMAP server supporting the THREAD extension [1]. However, it also serves as an example of some of the complexity that clients are expected to handle to provide a modern email experience. That algorithm isn't trivial, and reimplementing it with every client is expensive in development time, and error-prone. As mentioned in a sibling comment, the Switchboard server's roadmap includes making it thread aware, leaving Switchboard clients lean. [1] http://tools.ietf.org/html/rfc5256 http://tools.ietf.org/html/rfc5256