Hi I am using gnus and notmuch, and am trying to view the thread of the message I am viewing in gnus in notmuch. With help, I now have the following function: --8<---------------cut here---------------start------------->8--- (defun rmk/do-gnus-notmuch-stuff () (interactive) (unless (buffer-live-p gnus-summary-buffer) (user-error "No open Gnus summary buffer!")) (let ((message-id (with-current-buffer gnus-summary-buffer (mail-header-id (gnus-summary-article-header))))) (message message-id) (notmuch-search (concatenate 'string "id:" message-id)) ;; Now do the notmuch stuff )) --8<---------------cut here---------------end--------------->8--- which nicely extracts the message ID and calls notmuch-search, but I don't get any results. The buffer is called notmuch-search-id:<THE_MESSAGE-ID> I tried to call notmuch-search interactively, using id:<THE_MESSAGE-ID> but also no results. I now tried the search from the comandline: ,---- | Rainers-MacBook-Pro-2:~ rainerkrug$ notmuch search id:<e89a8f923ce652c84304f2f03b05@google.com> | -bash: syntax error near unexpected token `newline' | Rainers-MacBook-Pro-2:~ rainerkrug$ notmuch search id:"<e89a8f923ce652c84304f2f03b05@google.com>" | Rainers-MacBook-Pro-2:~ rainerkrug$ `---- If I search for the subject, it works, but not with the message ID. Is there something broken? I am using - GNU Emacs 24.3.1 (x86_64-apple-darwin13.0.0, Carbon Version 1.6.0 AppKit 1265) of 2014-02-13 on Rainers-MacBook-Pro-2.local installed via homebrew emacs-mac - notmuch binary installed via homebrew q Cheers, Rainer -- Rainer M. Krug email: RMKrug<at>gmail<dot>com