Mail rules with Script Warning message
Since anyone can fake the From field, the use of junk or Rule filter has become uselles.

So I have tentatively solved my issue with a 

Rule in Mail:



And Apple Script to at least Warn me:

set alertResult to display alert ¬
    "Buscar, this could be a SCAM." buttons {"Cancel", "OK"} as warning ¬
    default button "Cancel" cancel button "Cancel" giving up after 10