Zombie email: Part 2

In zombie email: part 1 I talked about how email addresses were tightly tied to internet access in the very early years of the internet. We didn’t have to worry about zombie email addresses because when an account was shut down, or ignored for a long time then mail would start bouncing and a sender could stop sending to that account.
There were two major changes to email accounts in the early 2000’s that led to the rise of zombie emails.
People started decoupling their internet access from their email addresses. Free addresses were easy to get and could be checked from everywhere. No longer did they have to dial in to get email, they could access it from outside the office and outside the home. Mobile devices, including the first generation of smart phones and laptops, helped drive people to use email addresses that they could access from any network. The easy access to free mail accounts and the permanence led people to adopt those addresses as their primary address.
When people changed addresses, for whatever reason, they didn’t have to stop paying. There was no way to tell the free ISPs to stop accepting mail for that address. Free mail providers would let addresses linger for months or years after the user had stopped logging in. Sometimes those addresses would fill up and start bouncing email, but they were not often turned off by the ISPs.
The lack of purging of abandoned addresses was the start of dead addresses accumulating on mailing lists. But there weren’t that many addresses in this state, and eventually they would fill up with mail. When they were full the ISP would stop accepting new mail for that account, and the address would bounce off a mailing list.
Everything changed with the entrance of Gmail onto the scene. When Gmail launched in 2004 they were providing a whole GB of storage for email accounts a totally unheard of storage capacity. Within a year they were providing multiple gigabytes of storage. Other freemail systems followed Gmail’s lead and now all free accounts have nearly unlimited storage. Plus, any mail in the spam folder was purged after a few weeks and bulk mail doesn’t count against the users’ storage quota. Now, an abandoned email account will almost never fill up thus senders can’t use over quota bounces to identify abandoned accounts.
Now we’re stuck in a situation where SMTP replies can’t be used to identify that there is no one home inside a particular email account. Senders can’t distinguish between a quiet subscriber and an abandoned address. ISPs, however, can and are using zombie addresses as a measure of a senders reputation.
On Monday we’ll talk about why and how zombie addresses can affect delivery. (Zombie emails: part 3)
Tuesday, we’ll talk about strategies to protect your list from being taken over by zombies. (Zombie Apocalypse)

Related Posts

Delivery consulting: it's all about the credibility

A few months ago I found a great blog post written by an ER doctor about how to convince other doctors to come in and deal with a patient in the middle of the night. There are quite  few similarities between his advice and the advice I would give delivery experts, ISP relations folks and ESP representatives when dealing with ISPs and spam filtering companies.

Read More

The importance of data hygiene

Over the weekend, one of the major ISPs purged a lot of abandoned accounts from their system. This has resulted in a massive increase in 550 user unknown bounces at that ISP. This ISP is one of those that uses bounces to feed into their reputation system and the purge may cause otherwise good senders to be blocked temporarily.
Talking to clients and other industry folks, it looks like the addresses that have newly bounced off had zero activity for at least 6 months. Nothing. Nada. No clicks. No opens. No interaction.
This is why data hygiene is so critical. Just because the emails are being accepted at the ISP, and even showing inbox placement at the mailbox monitoring companies does not mean that there is actually someone reading your email. Failure to look at overall data means that when an ISP bulk deletes abandoned accounts then bounces will increase. While I don’t expect this to have any real, long term effect on sender reputation I do expect that some senders with a lot of cruft on their list will see some short term delivery problems.
Companies that run re-engagement campaigns saw a whole lot less bouncing and even less blocking as a result of the purge. They were removing addresses that were non-responsive all along and thus didn’t have major deadwood on their list.
Ongoing data hygiene shows you what your list really is, not your list plus abandoned accounts. The addresses that the ISP purged? They were not valuable anyway. No one was reading that mail for at least 6 months.
If you did see a spike in bounces this weekend at a major ISP, you should really look at engagement. If some percentage of recipients at one ISP are actually non-existent, then it’s likely that about that same number are non-existent at other major ISPs as well. What are you going to do to identify and remove those dead addresses from your lists?

Read More

Don't forget to check out the forest

I have the #emailmarketing feed on twitter scrolling live across my screen while I’m working. It’s been an interesting experience as many of the people who tweet #emailmarketing aren’t part of my social network.
Over the last week or so there’s been a lot of tweeting going on about Ben and Jerry’s GIVING UP EMAIL MARKETING!!! Only, come to find out, that’s not what they’re doing. Yes, they are moving more into the social networking arena but they will be continuing to connect with subscribers through email. Today many are tweeting that perhaps they “jumped the cow” with their initial reports of email abandonment by B&J.
Watching the ongoing discussions led me to wonder if a lot of email marketers are so focused on the trees that they miss the forest? Are they so disconnected from how people actually use email, and social networks for that matter, that they spend way to much time chasing a response and not enough time thinking about what they’re saying and doing?
Email marketing discussions often focus on a limited number of things, the biggest are how to get mail to the inbox and how to get recipients to engage. Many marketers spend time and money looking for the elusive combination of factors that will get their mail to the inbox and impel the recipient to give the sender money. The focus is on details like color and pre-headers and length and timing and content above and below the fold and the perfect call to action.
The discussions focus almost exclusively on the sender and only mention the subscriber in passing. That is understandable on one level. Senders can only control one end of the equation and figuring out what inputs compel the best response from the other side is what marketing is all about.
But there’s another part of email marketing, and that is that subscribers invite marketers into their inboxes. When someone subscribes to a newsletter or mail from a company they’re offering that company the opportunity to interact with them in their personal space. This is, in fact, the holy grail of marketing having the customer invite contact from a seller.
I suspect this is why the rumors of Ben and Jerry’s abandoning email had people all up in arms. A  company abandoning a channel where they had an engaged and interested audience? PREPOSTEROUS! What’s happening to email as marketing?
I’ll be honest, I didn’t pay much attention because it was such a silly idea. Any marketer worth their salt wouldn’t give up a way to interact with customers. Ben and Jerry’s is a company with an almost cult like following. Anyone who was going to subscribe to a B&J newsletter was going to want that mail (new flavors! coupons! new locations! inside information!).
Someone started a rumor, though, that B&J were abandoning email marketing and everyone focusing on the trees grabbed that story and ran with it. They were so focused on the details they didn’t take a step back and think about what they were repeating. Had they taken a step back and thought about the forest they would have realized how silly the idea of B&Js abandoning email as a customer communication channel was.

Read More