Sadly, Rush, it seems someone has gotten your password to your yahoo account. At least that's what it seems. Be sure to change your password and scan your computer for any viruses/malware just to be sure they didn't get it that way.
I got two spam e-mails recently from your e-mail address, it's of course CCed to everyone on the mailing list it seems so I'm sure we all got the same e-mails. The spammer might have also added the e-mail addresses to a spam list but don't know. While it could theoretically be traced to the spammer, since it's using Rush's e-mail address (if password was stolen), I don't think it'll do much good to report the e-mails. We don't want Rush to get in trouble for someone else's actions. So again, definitely change the password and check for viruses and hopefully that won't happen again.
Although..your e-mail address could've been forged. I've seen that happen as well. If that's the case, they didn't steal your password but rather are using a way to make the e-mails seem like they're coming from your account.
However, the thing is: they have the e-mail addresses from your mailing list which might mean they did get on your e-mail account after all.
