It was not your settings. Just add a kill filter to get rid of the sex spam.
The same sex spam has been happening for 1.5 years in several other groups I follow.
I don't see them any more in this group. My kill filters delete them.
1) Select sex spam message.
2) Press Ctrl+K
3) Click the "Paste Subject" button.
4) Select the "delete" radio button.
5) Choose a priority, if you want.
6) If you have the Agent filter expiry patch, you might want to do
what I do and set "Expire this filter after 90 days of inactivity"
7) Click "OK"
8) Repeat for each different sex spam subject thread.
--
Kind regards
Ralph
三军易得,一将难求。
-- 罗贯中, 三国演义