I have Thunderbird set up not to show images by default. But some
spammers have discovered a way to encode their images so that they show
despite my settings. The latest example was exceptionally rude.
Is there some rule that I could add to my local.cf to catch any e-mail
that tries this end-run?

Paul Douglas Franklin
Computer Manager, Union Gospel Mission of Yakima, Washington
Husband of Danette
Father of Laurene, Miriam, Tycko, Timothy, Sarabeth, Marie, Dawnita, Anna Leah, Alexander, and Caleb