gnus-summary-cancel-article

[Emanuel Berg]

I accidentally sent a post three times to gnu.emacs.help - sorry
about that, but perhaps it wasn't so grave a mistake because some
lists/groups and/or clients (?) discard duplicate messages as
flood/spam protection - anyway, I tried

gnus-summary-cancel-article

but it said

Couldn't send message via news: 441 Invalid Control Message

My question - is this anything that works anymore or is it a
wasted effort, perhaps especially for the list/group hybrids?

-- 
Emanuel Berg - programmer (hire me! CV below)
computer projects: http://user.it.uu.se/~embe8573
internet activity: http://home.student.uu.se/embe8573