I work for an email marketing company. We have a sender who sent out 3 separate emails blast to over 1 million contacts. They had a very high unsubscribe rate. After our engineering team looked at the logs, we see that all the unsubscribes happened seconds apart but were all different domains. We noticed that they were coming from these IP's
126.96.36.199 and 10.4.34.203. After looking up I see that 188.8.131.52 is pointing to Palo Alto Networks. My question to you is, would your system do a mass unsubscribe if a scan picked up a url in an email as malware? Thank you.
This is possible if your firewall is performing Wildfire inspection of email links.
If the Wildfire Cloud receives e-mail links for analysis it will reach out and attempt to analyze the link and the content presented by cicking that link.
Would you be able to lookup URLs containing verticalresponse.com, vresp.com, vrmailer3.com to see if they've listed VerticalResponse as a company hosting malicious/phishing content? Or is there a PAN site we can go to and lookup URLs ourselves? We want to make sure our urls are not blacklisted.
So I have added both our URL and the sender who is having the mass global unsubscribe issue and I do not see their site or our site being listed with any issues. I am still at a loss how our customer who sent an email to 1million contacts had over 30k unsubscribe from different domains all around the same time?
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