Ensuring the subject lines contains a word?

[Johann 'Myrkraverk' Oskarsson]

Hi all,

Is it possible to add a function to some pre-send hook that makes sure
the subject line contains a certain word?  News, not mail, if it
matters.  Of course, the word in question depends on the group, so
some mechanism that ties posting styles (or something similar) to the
mixture would be nice.

For arguments sake, you can assume I want the word GNUS to appear in
the subject lines of all messages to this group, gnu.emacs.gnus.



Johann -- who doesn't even know what hook to use.