Hi All, Coming back to this, I think (I need to watch it for a week or so) that I have "solved" the mystery. When working from mail, I noticed that sometimes, a mail that I had sent could not be found as "sent". I had borrowed an elisp function from somewhere that marked "interesting messages as sent", and I think what I inadvertently did here was to bypass all the afew tagging for such messages. When I stopped using this elisp function, the messages seem to be tagged correctly again. It's only been a few days (you know the "let's see if it does it again joke, right?") so like I said, I'll keep an eye on it to see whether it's really "fixed" now. Thanks for all your help and patience in this matter! JT _______________________________________________ notmuch mailing list notmuch@notmuchmail.org https://notmuchmail.org/mailman/listinfo/notmuch