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Tag: opens

A must read on engagement

I really can’t add anything to what Chad wrote in Opens, Clicks, And Blocks In The Third Age Of Email Deliverability

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FAQ about opens and Gmail caching

I had hoped to blog about something else today, but this still seems to be a big concern for a number of people. There are a lot of questions running around, some of which we don’t have answers to, others of which we have answers based on some evidence. It’s important to remember that we’ve […]

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Gmail deploys image proxy servers

This afternoon Justin Foster of LiveClicker posted to the OnlyInfluencers list asking about Gmail rewriting links. Sometime very recently (last 24-48 hours), we are seeing that Google made a change to Gmail such that all image URLs in the email content are replaced by a call to Google’s content caching service googleusercontent.com. For example, an […]

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Tor cleans up their lists

Recently I got an email from Tor. Apparently they’re watching their opens and clicks and they noticed I hadn’t loaded any images recently. We notice you haven’t opened the Tor.com newsletter in a while, and that’s okay: we know you’re busy. That’s why we create our newsletter from scratch each week, to highlight the articles […]

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Meaningless metrics

I’ve been having some conversations with fellow delivery folks about metrics and delivery and bad practices. Sometimes, a sender will have what appear to be good metrics, but really aren’t getting them through any good practices. They’re managing to avoid the clear indicators of bad practices (complaints, SBL listings, blocks, etc), but only because the […]

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Subject lines

There has been a lot of discussion in various places recently about subject line length and how it affects email marketing. There have been multiple studies done on how the subject line affects opens and clicks. (Mailchimp, Alchemy Worx, Mailer Mailer, Adestra). The discussion has even spilled over into Ken Magill’s newsletter today. I’ve had […]

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Reporting email disposition

Most regular readers know I think open and click through rates are actually proxy measurements. That is they measure things that correlate with reading and interacting with an email and can be used to estimate how much an email is wanted by the recipients. The holy grail is, of course, having ISPs report back exact […]

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Forcing those opens

Most email marketers want to see their open rates go up. This particular marketer has come up with a new way to force recipients to load their mail. I’m not sure how successful this approach is going to be. I can see how this might increase open rate, as people who are interested in registering […]

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What email metrics do you use?

Vertical Response talks about email metrics that are useful on a dashboard. Metrics are an ongoing challenge for all marketers. The underlying need for metrics is to evaluate how effective a particular marketing program is. Picking metrics involves understanding what the goal is for a particular program. If your goal is brand recognition then perhaps […]

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Don’t take my subscribers away!

Tom Sather has a good summary of the problems with inactive email addresses and why data hygiene is critical to maintain high deliverability. These recommendations are some of the most difficult to convince people to implement. Some of my clients even show me numbers that show that a recipient that hadn’t opened or read and […]

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  • HE.net DNS problems

    Hurricane Electric had a significant outage of their authoritative DNS servers this morning, causing them to return valid responses with no results for all(?) queries. This will have caused delivery problems for any mail going to domains using HE.net DNS - which will include some of their colocation customers, as well as users of their free services - but also will have caused reverse DNS to fail for most servers hosted by Hurricane Electric worldwide, so if any of your mail is being sent from HE hosted machines you may have seen problems. (We're HE customers so we noticed. Still happy with them as a vendor.)No Comments


  • 65.0.0.0/8 DNS issues

    If you're sending email from any address beginning with a 65 - in 65.0.0.0/8 - it's possible you'll see some delivery problems. Something appears to be broken with dnssec signatures for the reverse DNS zone, leading queries for reverse DNS to fail for anyone using a dnssec aware DNS resolver (which is almost everyone).1 Comment


  • Our green bar certificate is going away

    Later today we'll be switching from an Extended Validation ("green bar") SSL certificate to a Domain Validation certificate. This isn't exactly a planned change but I'm waiting for responses from Comodo before I go into it too much. I'll share some more details next week.3 Comments


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