In message , Janet Tweedy
writes
On 20/12/2012 15:05, Martin wrote:
With Thunderbird, how do you automatically delete/ignore messages that
are cross posted to a user definable number of groups?

I found with Turnpike certain authors/posters would be the ones that
cross posted/flamed so you could killfile them automatically, still
trying to work out how to do this in TB
You can actually specify for each newsgroup a rule to kill any post to
more than "n" newsgroups where "n" is user defined. I kill anything
cross posted on most groups.
--
bert