David in Normandy wrote:

Ditto. Since switching to the MicroPlanet Gravity
newsreader I hardy see any troll activity. I've simply set
a rule to block posts sent to more than one newsgroup.
Because most trolls can't resist cross posting it is very
effective. The second rule automatically deletes any posts
with offensive language - this too is very effective.

I have just installed Gravity and it looks OK.

How does one set up the rules for cross posters.

Can't find it.