Comparing Email Service Providers? 3 data points you might not know, yet

How many emails do Email Service Providers (ESPs) like MailChimp, Salesforce (ExactTarget), Oracle (Responsys) and others send? What are the biggest brands using their infrastructure? And do they only send solicited and legally compliant emails? Below you’ll find three data points, which shed some light on these questions. Continue reading

Top Tweets from the Email Insider Summit #MPEIS

mpeis_topweetsDid you miss the Email Insider Summit, which took place on December 6-9 2015? Check out the session recordings. In addtion, you’ll find an inspiring retrospective by looking at the most interesting tweets from that event below:
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Hashing email lists for AdWords Customer Match

rapidminer_adwordsGoogle AdWords Customer Match lets you target email lists for remarketing purposes. Marketers upload their subscribers, and Google Search, YouTube, or Gmail, match them against signed in users to show them targeted ads. This makes it possible to e.g. reach out to inactive email subscribers on other channels easily.

To create such a list, one has to meet certain requirements. For privacy reasons, it’s always a good idea to hash addresses as a means of pseudonymization. Below you’ll find a step-by-step guide to accomplishing that using RapidMiner, an open source predictive analytics platform, which may be an alternative to using Excel. Continue reading

German email agencies and their email service provider relations [Infographic]

Absolit Consulting maintains a list of German email marketing agencies and their relationships to the most common email service providers (see also the ESP worldmap). Please find it in the two articles More Success with Specialized Email Agencies and Specialized Email Agencies Part 2. Both are in German.

The list would fit well into the agency-branch of the email marketing ecosystem. However, to make the visualization not more confusing than it already is, here’s a separate infographic, mapping the relationships between German email agencies and their supported ESPs: Continue reading

Top 1.000 Email Experts on Twitter – are you part of the movement? ;-)

Remember the top 250 email experts on Twitter from January 2013? Plus the gleanings? Although I did an update last year, it’s time to summarize the international email marketing community once again.

Several people changed their careers, others introduced themselves recently. Therefore, I took a fresh look at the friends-follower relationships of more than 2.200 folks on the social network, who seem to deal – or have dealt – with email marketing. The inner circle of this subnetwork looks like this: Continue reading

Email marketing inbound hours on Twitter…

Who isn’t keen on new digital marketing approaches these days… Well, yesterday I stumbled upon a one hour (?) twitter chat with @litmusapp and other #InboundHour hashtag participants. I did not attend, but it looked like the organizer @HubSpot posted seven frequently asked email marketing questions and @litmusapp as well as others shared their opinions on them.

Is this concept effective? I mean @HubSpot has 498,838 followers and @litmusapp has got 16.741. That’s a lot. Here’s a brief summary of the event, you can decide for yourself: Continue reading

Mapping the email ecosystem

There are more areas and players in the email marketing space than you might expect. Think for example of agile email specialists, append and validation services, blacklist operators, certification bodies, agencies, competitive intelligence and customer intelligence suites, deliverability services, design, testing and rendering tools etc.

Here’s just a overview to give you a quick idea. As the world has alone hundreds of email service providers, it’s without any claim to completeness:

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How animated symbols in Gmail subject lines increased my open rate

As announced in the “Email Gurus” board on LinkedIn, I put Gmail’s animated emoji symbols to the subject line test last Friday:

Here’s how I did it and what the results were. So much is revealed, they’re like…
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Placing animated Emojis in Gmail Subject Lines? [Cheat Sheet]

The emoji subject line cheat sheet and the maps of combined emoji usage from the previous posts are not enough? Well, then how about animating your subject lines like shown in this example:


Here’s another table of 703 copy-and-pastable unicode characters with the corresponding images. The best thing about those: they are rendered already in the inbox overview, not just in the single email view. Therefore it should be “ok” that they are excluded in the preheader. I highlighted the animated emojis with a yellow background (Note: German visitors might want to read my posting on

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Popular Emoji combinations in email subject lines

Did you download the Email Emoji Cheat Sheet? If so, then you might also remember @dataNeel’s research on combined Emoji usage in subject lines. His map is cool on its own, but even cooler now that he also published a Gephi export of the network in the comments section, so that everyone can play with the data.

Gephi is a popular free network visualization tool. I used it for example to create this and this plot of email experts on Twitter. It’s rather intuitive and comparably fast, so give it a try. Want something more programmatic? Then you should go on to Python and/or R. Followers of this blog already know R and its superb visualization and data shaping capabilities.

Here’s one example of how you can use R to explore @dataNeel’s Emoji network. Continue reading