I keep getting bombarded with the ever-annoying Klez worm (see
ml if you don't know what I'm talking about) from some of my mailing
list subscribers. With previous worms, I'd email the sender and ask them
to innoculate themselves, and black-hole them if they didn't. With Klez
spoofing the From: address, that idea goes out the window. Is there some
way to determine the real sender of Klez email by examining the email
headers? So far, all I can seem to determine is the originating site,
which in most cases is no help.
Similarly, once in a while I get a Klez post sent to majordomo@my site.
Rather than stopping after a few errors, majordomo keeps checking each
of several thousand binary lines, spitting out an error for each. Is
there some majordomo setting to get it to stop processing after X
errors? I thought there was, but I can't find it.