On 29/08/2019 20:59, Brian Gaff wrote:
Well there is a name for those, its starts with a b. its used in spam
filtering a lot by isps.
Brian

Bayesian statistics are frequently used to kill spam based on certain
heuristics and keywords present in your spam folder. It improves if you
train it. Thunderbird by default only has rule based filters.

You can add new header keywords but you cannot AFAIK filter on content.
The other main annoyance is a lack of wildcard matching (and a default
of match all of the above rules which catches me out from time to time).


--
Regards,
Martin Brown