Jean-Philippe GIOLA wrote: > >I have seen in the list I use that these 2 headers are not all the times >existing, even if the mail that has been sent is an answer. >Perhaps it depends of the MUA.
Yes, it depends on the MUA. The standard says these headers SHOULD be included, not that they MUST be, so it is not wrong to omit them and not all MUAs include them. You will see in the pipermail archives of this list for example that meaasges which contain neither of these headers are not threaded to prior messages with the same subject even though the content shows they are clearly replies. You will also see totally separate threads merged into one in the archive because someone begins a new thread by 'replying' to a prior message. -- Mark Sapiro <[EMAIL PROTECTED]> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp
