A poster on macOSXHints has described a rule designed to block the current plague of image-bearing spam.

It’s an improvement, perhaps, on the image spam catching rule I posted three months ago.

Having read the post and the suggestion in the comments, I’ve tweaked my rule for this a bit.

It now looks like this:

Most of the image spam I get contains a GIF file.

I like the idea of setting the colour to a particular colour so that I can see at a glance which messages the rule has moved. It gives a warm fuzzy feeling and it helps me to scan quickly for false positives.