It’s not often spammers send me their campaign statistics, but on Tuesday one did. The spam came “from” firstname.lastname@example.org, used udemy.com in the HELO and message-ids and, sure enough, was advertising udemy.com:
Received: from udemy.com (unknown [188.8.131.52]) by ...
From: Udemy <email@example.com>
Subject: The Photoshop Secret - Master Adobe Photoshop like a Pro!
But the call to action link was a bit.ly URL. Following the clickthroughs, the bit.ly URL redirected to linksynergy.com, which in […]