Barracuda problems

Folks were posting earlier today noticing problems delivering to Barracuda hosted services. The good news is Barracuda has been updating their status page. As of now, the status page says things are improving.

Monitoring – Since 7PM PDT 11/1/2016, the Barracuda Essentials for Email Security service has been experiencing a sustained and unusually large number of inbound connections from unverified sources. This resulted in some customers experiencing delays in email delivery and issues accessing the message/quarantine logs. We have made significant progress sanitizing these connections. At this point, email processing capabilities have returned to normal and backlogged messages are being delivered. Also, access to the message and quarantine logs is fully restored. We are continuously monitoring the connection load, taking further steps to mitigate the impact and tracing the root cause. Our priority is to restore the service to full capacity. We will provide more information through the course of the investigation. Thank you for your patience.

There have been a lot of attacks over the recent past, some against mail servers some against other systems. There’s not enough data to know if this is related to any of that but it’s certainly worth paying attention to.

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Purchased lists and ESPs: 9 months later

It was about 8 months ago I published a list of ESPs that prohibit the use of purchased lists. There have been a number of interesting responses to that post.
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ESPs wanted to be added to the list
The first iteration of the list was crowdsourced from different ESP representatives. They shared the info they had with each other. With their permission, I put it together into a post and published it here. Since then, I’ve had a trickle of ESPs asking to be added to the list. I’m happy to add any ESP. The only requirement is a privacy policy (or AUP) that states no purchased lists.
People reference the list regularly
I’ve had a lot of ESP deliverability folks send thanks for writing this post. They tell me they reference it regularly when dealing with clients. It’s also been listed as “one of the best blog posts of 2015” by Pardot.
Some 2016 predictions build on the post
I’ve read multiple future predictions that talk about how the era of purchased lists is over. I don’t think they’re wrong. I think that purchased lists are going to be deliverability nightmares on an internet where users wanting a mail is a prime factor in inbox deliverability. They’re already difficult to deliver, but it’s going to get worse.
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Not everyone thinks this is a good post. In fact, I just recently got an comment about how wrong I was, and… well, I’ll just share it because I don’t think my summary of it will do it any justice.

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conversation_for_blogEarlier today I approved a comment from Mike on a post about problems at AOL from 2012. The part of the comment that caught my attention:

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November 2015: The month in email

As we head into the last month of the year, we look back at our November adventures. I spoke twice this month, first at Message Systems Insight in Monterey (my wrap-up post is here) and then with Ken Magill at the  at the 2015 All About eMail Virtual Conference & Expo (a short follow-up here, and a longer post on filters that came out of that discussion here.). Both were fun and engaging — it’s always great to get a direct sense of what challenges are hitting people in the email world, and to help clear up myths and misconceptions about what works and doesn’t work in email marketing and delivery. I’m putting together my conference and speaking schedule for 2016 — if you know of anything interesting that should be on my radar, please add it in the comments, thanks!
In industry news, we noted a sharp uptick in CBL listings, and then posted about the explanation for the false positives. Steve wrote about an interesting new Certificate Authority (CA) called Let’s Encrypt, which looks to be a wonderful (and much-needed) alternative for certificates, and I put together some thoughts on SenderScore.
Steve and I did a few posts in parallel this month. First, Steve posted an interesting exercise in SPF debugging. Are you seeing mail from legitimate senders flagged as spam? This might be why. My investigative post was about ISP rejections, and how you can figure out where the block is occurring. In each case, you’ll get a glimpse of how we go about identifying and troubleshooting issues, even when we don’t have much to go on.
We each also wrote a bit about phishing. Steve posted a timely warning about spear phishing — malware attacks disguised as legitimate email from within your organization — and reminds all of us to be careful about attachments. With all of the more secure options for document sharing these days, it’s a lot easier to avoid the risk by maintaining a no-attachments policy in your company. And I wrote about how the Department of Defense breaking HTML links in email to help combat phishing. If your lists include military addresses (.mil), you may want to come up with a strategy for marketing to those recipients that relies less on a clickthrough call to action.
We amused ourselves a bit with a game of Deliverability Bingo, then followed up with a more serious look at the thing we hear all the time — “I’m sure they’ll unblock me if I can just explain my business model.” While an ESP abuse desk is unlikely to be swayed by this strategy, it is actually at the core of how we think about deliverability at Word to the Wise. Legitimate senders have many kinds of lists, many kinds of recipients, many kinds of marketing strategies, and many kinds of business goals. For us to help marketers craft sustainable email programs, we need to understand exactly what matters most to our clients.

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