JC Dill wrote: >Mark Sapiro wrote: >> 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. > >This will also happen most of the time when the reply user is on digest, >because the digest has no reference header to the single article they >are replying to. The exception may be if they are getting the digest >type that their email client can explode back into individual articles - >and if Mailman includes the reference header with the individual >articles. Since I don't "do" digests, I don't know what the details are >with this type of digest and if threading works in this case or not. >Someone who knows more about this type of digest may be able to give >input on if it retains the references header for each post.
Yes. MIME format digests retain Message-ID:, References: and In-Reply-To: headers from the individual messages so if the user's MUA shows the individual message parts as separate messages that can be separately replied to, and if the MUA properly creates References: and/or In-Reply-To: headers in the reply, then threading will be maintained. Plain text format digests retain the Message-ID: header, but not any References: or In-Reply-To: headers from the original post. In this case, a sufficiently aware MUA that can explode the digest could still create an In-Reply-To: header in a reply that would allow proper threading, but few if any popular MUAs can do this. -- 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
