So,
I've tried to debug this for quite some time now:
1) if I put the following line
at some random place in my .emacs file, capture doesn't work (org-mu4e-store-and-capture) ... can apparently be traced to org-store-link not being defined:
user-error: No method for storing a link from this buffer (from *Messages* buffer)
2) if I put that require line all the way at the top (before any other line) of my .emacs,
then org-store-link does work although there are some worrisome messages:
[mu4e] Found 500 matching messages
Problems while trying to load feature ‘org-w3m’
Problems while trying to load feature ‘org-bbdb’
Problems while trying to load feature ‘org-bibtex’
Problems while trying to load feature ‘org-docview’
Problems while trying to load feature ‘org-gnus’
Problems while trying to load feature ‘org-info’
Problems while trying to load feature ‘org-irc’
Problems while trying to load feature ‘org-mhe’
Problems while trying to load feature ‘org-rmail’
Stored: [grid.sysadmin] Fwd: Gebruikscijfers 2013-2016
You can run the command ‘org-store-link’ with C-c l
Stored: [grid.sysadmin] Fwd: Gebruikscijfers 2013-2016
3) HOWEVER, org-mu4e-store-and-capture does not work:
Template key:
File mode specification error: (void-function org-link-types)
org-capture: Capture abort: (void-function org-link-types)
Thanks for any help.