gnus: Unread Articles
3.7.1 Unread Articles
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The following marks mark articles as (kinda) unread, in one form or
other.
‘!’
Marked as ticked (‘gnus-ticked-mark’).
“Ticked articles” are articles that will remain visible always. If
you see an article that you find interesting, or you want to put
off reading it, or replying to it, until sometime later, you’d
typically tick it. However, articles can be expired (from news
servers by the news server software, Gnus itself never expires
ticked messages), so if you want to keep an article forever, you’ll
have to make it persistent (
Persistent Articles).
‘?’
Marked as dormant (‘gnus-dormant-mark’).
“Dormant articles” will only appear in the summary buffer if there
are followups to it. If you want to see them even if they don’t
have followups, you can use the ‘/ D’ command (Limiting).
Otherwise (except for the visibility issue), they are just like
ticked messages.
‘SPACE’
Marked as unread (‘gnus-unread-mark’).
“Unread articles” are articles that haven’t been read at all yet.
Info Catalog
gnus: Marking Articles
gnus: Read Articles