What is an open?

I was having a discussion today with a few industry colleagues about engagement and open rates. It was a good discussion and inspired a couple blog posts. Engagement totally matters, Engagement affects deliverability, and ISPs should be the last of your concerns.
I think they’ve covered the engagement issue pretty well, but what I wanted to talk about was metrics, specifically opens. Open is a fairly simple word, and it’s used in email all the time. Recipients open email. Mailbox providers measure that open. Senders measure that open.
It’s critical to remember, though, that open rates as measured by free mailbox provider and open rates tracked by a sender are not really the same thing. They’re measured in very different ways, and there is not a 1:1 mapping between the two measurements.

  • Free mailbox providers actually track that the message was opened. They can see the status change from “unread” to “read.”
  • ESPs track when a recipient loads an image.

ESPs can’t track the status of a message inside the recipient’s mailbox. And free mailbox providers don’t need to track image loads.
So even though both groups claim they are tracking opens, how they’re tracking gives different data to the people measuring the information. Gmail sees me open mail all the time. Most of my clients never see me open an email in my gmail account.
Free mailbox providers and senders are using the exact same word (Open) to describe different things (rendering an image vs. actually opening the mail). I think these things are different enough to say that an open as measured by a free mailbox provider and an open measured by the sender are not the same at all.
The crux of it is that even though mailbox providers use the metric of “open” to look at engagement and even though senders use the metric of “open” to look at engagement, they’re actually looking at two totally different things.

Email Authentication in a nutshell
'Tis the season

Related Posts

Barracuda clicking all links in emails

A number of people have asked me recently if I know anything about appliances clicking all the links in emails. Some of those people have asked specifically about Barracuda, some have just asked if I knew of any filters that clicked links.
The answer is, yes, there are cases where spam filters have followed all the links in an email. One of the filters that I know has done this in the past is Barracuda. Based on discussions with the different people who are reporting this behavior, it does seem that this is happening more often. One person did mention that they were primarily seeing this with mail where the click domains were different from the From: domains.
I’m still working on getting more information from folks, and will update if I hear anything more. I’m also working on some advice for folks who get caught in this.
If you have experience with Barracuda (or other spam filters) clicking all the links in an email, drop me an email (contact)

Read More

More from Gmail

Campaign Monitor has an interview with Gmail looking at how to get mail to the Gmail inbox. It’s a great article and I think everyone should go read it.
One of the most important things it talks about is how complex filters are.

Read More

One letter off…

I’m working on a blog post about the new Gmail tabbed inbox and the messages Gmail is inserting into the promotions tab. The messages aren’t showing up on most of my accounts, so I logged into an infrequently used account of mine. Ads are there, I got my screenshots and some data about the behaviour of the messages. So far so good.
I also discovered that at least two other women are using my address. One of them apparently ordered a bunch of wedding stuff from David’s Bridal shop using my email address. I hope Kirstie got her special order in time.
The other case is more interesting. I found dozens of emails in my inbox from what appeared to be friends including me in their email forward chain.
The Comic Sans. The FW:FW:FW:FW:FW subject lines. The horribly drawn cartoons. The inspirational messages. The prayer requests. The invites to bridge night. The followup demands that I reply to their invites for bridge night. The sad emails that I didn’t go to bridge night. There were emails from grandchildren. Questions about where I’d been and if I moved. Prayer chains. The messages go on and on.
Looking back through my inbox, this has been going on since sometime late in 2012. (Told you this was an infrequently used account). I looked and looked and I think I figured out what happened. A woman named Helen appears to to have an email address one letter off from mine (string@ vs stringsstring@) and one of her church friends tried to reply to her and dropped the ‘s’ from the email address. Once she did that, everyone else just kept hitting “reply all” and are including me in their forward chain.
It’s not commercial, it’s not spam. It’s just a bunch of people mistyping an email address and sending mail to someone they don’t know. I’m kinda glad it was a bunch of church ladies rather than Carlos Danger sending … well… Carlos Danger type messages.
People get email addresses wrong sometimes. It happens (ask me about the time I almost got my mailserver blocked because I mistyped an address while sending mail to a blocklist maintainer and hit a trap address by mistake…). The problem is that it can overwhelm an uninvolved person’s mailbox, even when it’s not commercial. Sure, if I was logging in to this account more often I’d probably have shut it down, but if they were paying attention they would have realized Helen is never replying to anything they send.
I kinda feel the same about commercial mailers that send me mail over and over and over again. I never open it, I never reply to it, I never respond to it. I wonder if there is actually anyone actually sending the mail, or if there’s just a lonely mailserver bricked up in a wall somewhere continually sending out spam.
Don’t be the bricked up server in the wall. Pay attention to what your recipients are doing.

Read More