I've got a particular type of spam that is driving me nuts here. It's the same type of message coming from many different servers (I'm not sure how many yet, but the first 8 messages of this type I've looked at are all different). Basically, each message has a random subject followed by a small jumbled paragraph then there is an image with the message "investor alert, stock symbol, etc..." (Are people really that stupid to invest into something like this? =O) and finally another jumbled paragraph.
When I looked up the IP addresses in the RBLs, they all are free and clear. I was thinking about adding in a optical recognition but there's "noise" in the image that may make it hard for the program to read. I'm sure we're not the only ones receiving this type of spam... What are people doing to stop it?