It' not from Liz. It's coming through a google group set up for one of Joey's classes in adult ed sometime back. Since I did not set the group up, I can't look at the group setting, but I'm guessing that anybody can post to it. But if you look carefully at the original anders address, it comes from
schwarts...@yahoo.com. That may or may not have been Liz's email address a long time back, but her current address is
efsch...@mac.com.
This SPAM most likely is spoofing Liz's address. The other possibility, of course, is that's an old address from when she participated in the class and her google account has been hacked. But spoofing is so common that without additional information, I strongly suspect that the first scenario is the correct one.