New Spammer Trick
It isn't really a new trick as much as a play on an old trick. Spammers like to forge headers despite the CAN-SPAM act. They blindly send messages to email addresses to see what’s viable. It's all really annoying.
Anyway, over the last couple of weeks I've gotten a few sets of messages where I get 10 copies of the same message sent to the same email address. I figured the spammer had a messed up sending program or my mail server was chocking on the message. After receiving 2 sets of that mess, I blocked the receiving email address.
But the messages kept coming through the email address I blocked. That just didn’t make much sense. I decided it was time to take a look into the header to see how this could possibly be happening. Apparently they forged the TO address and sent the message to another mailbox. You don't realize it until you peak at the header details.
I guess I could just disable the catch all mailbox but I like using it to give different email addresses to different companies. It can come in handy to track down who leaks your email address to a nasty spammer. I caught one company once. Anyway, I went through all the headers and listed which email addresses they are targeting and am in the process of shutting them down.
As if I have nothing better to do!
Posted: January 09, 2006
Updates
Then again, more that I think about this, it may not be a crazy programming trick. They may just be using BCC to send copies to 15 different email address. Granted, I'm still not sure how they are sending to one domain that I own and sending copies to another domain that I own. Maybe they're making the connection with the WHOIS.
January 15, 2006
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