The question came up on slack this morning about bounce rate benchmarks. What are the normal / average bounces that different ESPs see? Does region matter? What’s acceptable for bounce rates? Bounce rate is an overall measure of address quality Here’s your the chance for ESPs share the data from your customers. We’re interested in anything you care to share. But more detail is...
One of the side effects of using tagged addresses to sign up for things is seeing exactly what companies do with your data once they get it. For instance, 3 years ago I downloaded a white paper or something from an ESP. That white paper was apparently co-branded and the other company got my email address from the ESP. They’re now sending mail to that address. I unsubscribed from the ESP...
I really dislike whomever it was that coined the term pristine spamtraps. I get what they were trying to do, explain the different kinds of spamtraps and how different traps get on your list in different ways. Except… any type of trap can end up on your list in any way. For instance, not every recycled trap shows up on a list because bounce handling is bad. Sometimes, people input their old...
One of the toughest deliverability problems to deal with is when mail is blocked or going to spam because the filters are working as intended. Often the underlying issue is a lack of permission. In the consumer space there are some thing the sender can do to change their metrics and get to the inbox. The reality is that a lot of companies who send to consumers can get good delivery even when they...
A few hours ago I was reading an ESP blog post that recommended removing addresses after they were inactive for a year because the address could turn into a spamtrap. That is not how addresses turn into spamtraps and not why we want to remove active addresses. Moreover, it demonstrates a deep misunderstanding of spamtraps. Unfortunately, there are a lot of myths and misunderstandings of...
As the volume and severity of malicious email increases, filters are increasingly following links in emails. This is really nothing new. Barracuda and other filters have been inspecting links automatically for years. From what I’ve seen there does seem to be some level of risk analysis based on domain reputation. That makes sense, not only is following links computationally expensive, it...
I was on a call with a client today and they wanted to talk about the handshake agreement about bounce handling I mentioned last week. As I started to really talk about it, I realised how much has changed in the years since that meeting. It was a bit of the wild west of email and spam. CAN SPAM didn’t exist. Gmail didn’t exist. Global email volume, even including spam probably...
Bounces and bounce handling is one of those topics I’ve avoided writing about for a long time. Part of my avoidance is because there are decades of confusing terminology that hasn’t ever been really defined. Untangling that terminology is the first step to being able to talk sensibly about what to do. Instead of writing a giant long post, I can break it into smaller, more focused...
One of the big topics of discussion in various deliverability circles is the problems many places are seeing with delivery to Microsoft properties. One of the challenges is that Microsoft seems to be happy with how their filters are working, while senders are seeing vastly different data. I started thinking about reporting, how we generate reports and how do we know the reports are correct...
The other day I tweeted that I often used the term “receivers” to describe receiving MTAs. Whenever I use the term “receivers” to discuss email filters, I think of JD and Madkins telling me that receivers send mail, too. And they do. But I haven’t found a better term for “groups that receive and filter lots of mail.” #deliverability #emailgeek — Laura Atkins (@wise_laura)...
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