That may or may not be a good metric, since if I just signed up for a legit mailing-list, I may be anxiously awaiting the confirmation mail, or if I'm a robot, I might be backlogged a few tens of seconds.
So the Venn Diagram circles just might overlap more than you would wish. Aloha, Michael. -- Michael J Wise | Microsoft | Spam Analysis | "Your Spam Specimen Has Been Processed." | Got the Junk Mail Reporting Tool ? -----Original Message----- From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Jay Hennigan Sent: Wednesday, May 25, 2016 4:03 PM To: mailop@mailop.org Subject: Re: [mailop] signup form abuse On 5/25/16 8:36 AM, Vick Khera wrote: > I did a spot check of a recent attack. The email address was > jabradb...@kanawhascales.com <mailto:jabradb...@kanawhascales.com> > and it got signed up to 12 lists during May 17 and 18. Amazingly, > whoever is on the other end of that address clicked to confirm every > one of those confirmation messages. All confirmation clicks appear to > come from a netblock owned by Barracuda Networks... Hmm... Maybe Barracuda spam filtering is doing something like opening remote content to inspect it before forwarding it to the inbox. What was the latency between when the confirmations were sent and when they were "clicked"? -- Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net Impulse Internet Service - https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fwww.impulse.net%2f&data=01%7c01%7cmichael.wise%40microsoft.com%7cce37d60a078e41cab81e08d384f15cf7%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=x0mTD7A0OqaRkzR%2fgnb7sHsi7oIhOgP7OJEi4c%2bVTv8%3d Your local telephone and internet company - 805 884-6323 - WB6RDV _______________________________________________ mailop mailing list mailop@mailop.org https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fchilli.nosignal.org%2fcgi-bin%2fmailman%2flistinfo%2fmailop&data=01%7c01%7cmichael.wise%40microsoft.com%7cce37d60a078e41cab81e08d384f15cf7%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=R5a9BsHXQJjF81%2fAeHFChLTICwDj14lNST8CpCmq00k%3d _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
