gnus: Group Maintenance
2.13 Group Maintenance
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‘b’
Find bogus groups and delete them
(‘gnus-group-check-bogus-groups’).
‘F’
Find new groups and process them (‘gnus-group-find-new-groups’).
With 1 ‘C-u’, use the ‘ask-server’ method to query the server for
new groups. With 2 ‘C-u’’s, use most complete method possible to
query the server for new groups, and subscribe the new groups as
zombies.
‘C-c C-x’
Run all expirable articles in the current group through the expiry
process (if any) (‘gnus-group-expire-articles’). That is, delete
all expirable articles in the group that have been around for a
while. (Expiring Mail).
‘C-c C-M-x’
Run all expirable articles in all groups through the expiry process
(‘gnus-group-expire-all-groups’).