Gregor Zattler <telegraph@gmx.net> writes: > Hi David, > * David Bremner <david@tethera.net> [09. Jul. 2017]: >> Gregor Zattler <telegraph@gmx.net> writes: >>> Since its an email from an open mailing list I attach it to >>> this very email. >>> >> >> It might or might not be related, but I noticed that those two messages >> get merged for me into a thread 1734 messages long of org-mode messages >> (I have some old org messages, but I think I not the two you mention). >> >> I'm not sure yet if it's a bug in notmuch, or something strange about >> mail from the org-mode list. > > This *might* be related with some other problem I reported > regarding false threading of messages, as discussed in the thread > containing amongst others id:874nvcekjk.fsf@qmul.ac.uk > > Short version: Some of the messages on this mailinglist had very > weired References: headers mot probably causing notmuch to > misbehave while threading the messages. But then there was no > xapian exeption involved. > Right. I looks like there are indeed many message-ids in the resulting database that look like valid email addresses. So that problem persists, despite an attempted fix discussed in that thread. I was wondering if the exception could result from overflowing some internal limit due to threads many thousands of messages long. I will be hard to know until I can replicate the exception. Perhaps a more complete org-mode list archive would do it. d