June 18, 2019

Barracuda lists 18,000% more IPs than the daily average over one week.

**Update: As of 6/19, Barracuda listings decreased from approximately 2000 on 6/18, to approximately 900 today.**

This morning you may have woken up to a larger-than-normal number of 250ok Alerts about the Barracuda RBL monitored by the 250ok platform. We saw several individuals asking about it, wondering if they were the only ones impacted by this large listing issue.

We dove into 250ok Reputation blacklisting data to find the listings have grown exponentially overnight, crescendoing to a peak after gradually increasing over several days.

“Our typical day of monitoring shows only a handful of IP addresses listed on a regular basis,” says Alexander Heinz, 250ok solutions architect. “Over the last week, we saw that list grow from a handful to a couple thousand. In fact, looking at the number of listed IPs from a week ago compared to today shows an 18,000% increase in the daily average of listings.”

When this issue hit Twitter, the Barracuda networks team asked ESPs to email intent_at_barracuda.com with the IPs and their contact info so the investigations team could look into the potential cause of the listings and help with remediation.

If you’re seeing a similar spike in your IPs being listed, you might also be part of today’s listing increase. Reach out to the Barracuda team to help facilitate delistings as soon as possible. Additional details sent to their team might help them understand if there is a larger issue at play within their RBL list.

Author: Matthew Vernhout

Matthew Vernhout is a digital messaging industry veteran and Certified International Privacy Professional (CIPP) with more than a decade of experience in email marketing. Matt is 250ok’s Director of Privacy, and he is currently the Vice Chair of the eec, after serving for several years as the Chair of their Advocacy Subcommittee.

You may also like...

The Year in Email 2019

It’s hard to believe we are nearing the end of yet another exciting year in email, and 2019 proved to be one of the most momentous and active years to date. Over the past year, the number of new technologies, mergers and acquisitions, mailbox provider (MBP) announcements, news, and highlights is evidence of the versatility […]

[Infographic] Global Privacy Relationship Status: It’s Complicated

I recently gave a presentation on global privacy regulations to a post-graduate marketing class and one of the things I noticed while preparing was that even within a single country, privacy is complicated. On a global scale, it is really complicated. For example, Canada has one federal private sector privacy law, three similar provincial laws, […]

The Year in Email 2018

*Update: This article was featured on email influencer Jordie van Rijn’s emailmonday blog! To see it in action, plus a great round-up of other articles and thought leadership looking forward to the future of email, click here.* The Black Friday emails are deleted, marketers’ email lists are checked twice, we pretty much know which senders […]

Ready to get started?