> On May 25, 2016, at 4:03 PM, Jay Hennigan <mailop-l...@keycodes.com> wrote: > > 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”?
Barracuda is well known for following every link in an email, including confirmation links laura -- Having an Email Crisis? 800 823-9674 Laura Atkins Word to the Wise la...@wordtothewise.com (650) 437-0741 Email Delivery Blog: http://wordtothewise.com/blog _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
