Some mail clients are especially stupid and break the In-Reply-To: protocol one way or another. If you examine the full headers of this message there should be a header:
In-Reply-To: <51ec1336.1090...@nc.rr.com> that threads this message back to yours. Some mail viewers will try to undo the damage of stupid clients and use the Subject: header to rethread, but these same broken clients will often also mangle the Subject: so there's no hope. One last thing is I think that replying to threads from a digest mail is iffy and may break threading. On Sun, Jul 21, 2013 at 12:58 PM, John Sessoms <jsessoms...@nc.rr.com> wrote: > Now that I've got the list coming in directly to Thunderbird (via Yahoo), > I've made a filter that puts all PDML into a PDML folder. Seems to be > working great. > > In the PDML folder, I tried sorting by subject. Works ok, but ... > > It doesn't quite group all the same subject together in one place? > > Case in point - I see two replies to Larry's post Re: PESO "Down by the > seashore". > > Then I work my way down through several more groups of subjects & replies > and lo & behold, there's Larry's original post PESO "Down by the seashore" > and then several more replies. Why weren't they all together in one place? > They were all already in the folder when I did the sort. > > Not a rant, just curious why it does that? Anyone know? > > Thunderbird for Dummies version if you will. > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- -bmw -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.