On Mon, 9 Aug 2010 00:09:32 +0200 Frank Lanitz frank@frank.uvena.de wrote:
Just check for the In-Reply-To and References header inside mails. This is taken as date to identify a thread in most cases. Filtering/Sorting only be Subject is a real bad idea.
Hmm, I'm still missing something. If threads are indeed sorted In-Reply-To and References, but additionally the subject line is checked, is it still a bad thing? Why? For example, for same In-Reply-To and References but different subjects, I would find it reasonable to have to different threads. Liviu