Random question about spam.

So I actually opened a piece of spam by mistake today, for the first time in a long time - typically they have easy-to-spot subject lines, containing things like "Jimmie 20fltlskci dvc n," so I just bounce them before even downloading them to my PC. Today's was one with no subject line, but the body of the message contained the kind of mishmash I'm used to seeing in titles. The only English was something like, "Lowest mortgage ever," and I didn't see any kind of identifier that might have enabled an actual company to make an actual sale. Does anyone in LJ-land know what's up with this?