gnus: NOV Data
6.4.13.8 NOV data
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An article identified by ‘uniq’ has its NOV data (used to generate lines
in the summary buffer) stored in ‘.nnmaildir/nov/uniq’. There is no
‘nnmaildir-generate-nov-databases’ function. (There isn’t much need for
it—an article’s NOV data is updated automatically when the article or
‘nnmail-extra-headers’ has changed.) You can force ‘nnmaildir’ to
regenerate the NOV data for a single article simply by deleting the
corresponding NOV file, but _beware_: this will also cause ‘nnmaildir’
to assign a new article number for this article, which may cause trouble
with ‘seen’ marks, the Agent, and the cache.
Info Catalog
gnus: Article Identification
gnus: Choosing a Mail Back End
gnus: Article Marks