AI Email Render-ation Sensation: How Makes Emails Look Great – Part II

AI email render-ation sensation, part II

Email can be tricky. The emails you create may look fabulous in your email generation software, but they might not always translate when they arrive in your recipient’s inbox. So, why is that? The answer is that there are countless email platforms and devices, and between those two factors, the combinations are endless.

In the first part of our series, we explored coding superior email designs that will render properly and look good across all email clients and devices. In this part of our series, we will explore how we treat images and then conclude with a highly-important part of email design: testing.

Image Processing with Imgix

Careful consideration of email image treatment is another important part of making our emails look great here at One of the tools we use is an image processing service called Imgix, which helps us format and crop images inside our news briefs.  

As we gather news articles for our newsletters, we cloud-store the images in an Amazon S3 bucket. We then give Imgix access to that bucket. From there, we can enhance and crop our images by passing query parameters, which are filters for image processing, to the end of our image-hosted URL.  

In the example below, we have the original image on the left and two examples of cropping using query parameters on the right. Imgix gives us the ability to recognize faces in an image denoted by the “fit=face” query param. However, as you can also see in the example below, it doesn’t work perfectly all the time.

We later discovered Imgix’s entropy setting. The idea behind it is that the most “interesting” part of an image is the area of high contrast. By setting “crop=entropy,” we can now crop to the most “significant” part of an image. Imgix is a great tool that we use in every news brief.

Try sending smarter, easier, better newsletters today (for free).


Testing email design with Email on Acid (EOA)

Another great tool we use is Email on Acid (EOA). We use EOA to test the responsive layout and look of our emails across multiple email clients. EOA gives us the ability to quickly view what our email will look like on over 80 email clients. Viewing our designs over multiple email clients is important. As I mentioned earlier, the top three email clients, iPad, iPhone, and Gmail are included in EOA’s test summary (Figure 3).

Also, there are several versions of Outlook in EOA’s test summary.  Outlook can be troublesome when trying to get an email layout to render properly. By utilizing EOA’s email client test summary, we can ensure that our clients will receive a great looking news brief.

Email rendering series summary

In the first part of our series, we briefly discussed how we build responsive email designs by using a combination of inky and Jinja templating languages. We also touched on the technique we use for image cropping to highlight the most “significant part” of an image. Lastly, we covered the comprehensive test summary offered by Email on Acid.

Why is this important? At, our core purpose is to better inform the world. One way of informing the world is through our daily newsletters. The reason we exist is to help people engage with relevant information more frequently. That’s why it’s so important. 

Are you ready to take your email to the next level and leverage artificial intelligence to generate content all your users want to read? Are you ready to give your brand a boost? Contact the experts at today.

Create your own newsletter with

It's easy and free to start.

Read more from the Pushing Send Blog!

[Podcast] Pushing Send – Episode 11 with Sachit Gupta

[Podcast] Pushing Send – Episode 11 with Sachit Gupta

Sachit Gupta Email has been around for a while and by many predictions will still be a crucial business tool for a long time to come. It has got such a small learning curve; it’s easy to use, it’s intuitive, and it can be personalized for each specific audience. On...

[Podcast] Pushing Send – Episode 10 with Grant Baldwin

[Podcast] Pushing Send – Episode 10 with Grant Baldwin

Grant Baldwin In this episode of Pushing Send, we welcome Grant Baldwin, a public speaker, author, entrepreneur, and the host of The Speaker Lab podcast — a platform where he helps other speakers to start, build, and grow their business. Grant is truly an example of...

[Podcast] Pushing Send – Episode 9 with Brennan Dunn

[Podcast] Pushing Send – Episode 9 with Brennan Dunn

Brennan Dunn In this episode we have Brennan Dunn, who will be describing some early lessons in email marketing. Brennan has been in the freelancing world for many years and currently makes his living by providing software and products to freelancers and consultants...