What does this condition do?
It deletes any incoming email with the substring $$$ in the subject
line/header. A lot of spam contains dollar signs in the headers - or
rather they used to contain dollar signs. I am not real sure if it works
anymore. The spammers may have learned to omit $$$ in the headers.
I receive the Procmail list in digest format. I may be a few days behing
the time in responding.