What does make it thru, for the most part, seems to be getting in via trusted relays.
Most of it from nic.name. It looks like they don't do any spam filtering at all! So I've set things so that most mail sent to email@example.com goes to a trash folder. Please don't use that address.
The rest gets in via LJ's "forward mail to user". I'm doubly disappointed in them. I'm probably going to turn it off, so that firstname.lastname@example.org doesn't work.
The address to reach me at is email@example.com.