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Email Marketing Images Best Practices

When it comes to email marketing images you have to keep in mind that the quantity doesn’t count. It’s more important to focus on your audience. What will attract them the most? Additionally, there’s a big difference between images you are using in order to sell stuff, and those you are using for brand awareness (educational and so on). In order to shoot emails, images need to be optimized for email communications. The image size is a primary factor that determines the size of the email. Image-based emails have always been an effective way to increase conversion rates for business owners, mainly because they showcase all their product or service offerings to customers. It goes without saying that the image you use in your email marketing campaign is a key factor, especially when it comes to conversion rates. While there are different factors that contribute to higher response rates, you need to make sure you are using the right size images and adding them into your emails so that they are readable on various devices.

When considering the use of images in your email marketing, it is important to keep in mind that certain mail clients like Gmail and Yahoo will simply not allow you to send more than four images in total. We recommend keeping design minimal, utilizing icons when possible, and being sure to get customer feedback from time to time. Your users will likely appreciate anything that alleviates the amount of eye strain created as a result of longer reading sessions. Remember to keep using or remove images from your email. You have to check to see if it is adding value or not. Find ways to connect with your audience without boring them by adding too many images, remember the key marketing points and don’t lose sight of that, just because you want to add a lot of pictures. Make sure you have the permission to send out images, if they are not yours then you might be committing a copyright offence. Meeting your email marketing goals requires a solid strategy and clear understanding of the tools at your disposal. Email marketing is all about creating engaging experiences, and in this case, images are an easy way to do it. The best practices we’ve outlined here will help you run emails that not only look great but also get results. So give them a try, and don’t let the next time you run an email campaign pass without them.

Awesome email marketing campaigns aren’t just about the text. They’re also about the relevant, engaging imagery used to complement your message. So along with powerful subject lines and concise copywriting, you need to make sure your images are just as good as the rest of your campaign. Now that you have a good idea of what to include in your marketing emails, let’s talk about the most important aspect – images. Images are the key to building trust, breaking through the clutter, and persuading your customers. Great images can increase click-through rates by over 33%.

Are you using images in your email campaigns effectively? If not, then you could be missing out on a huge opportunity for engagement. According to data from Litmus, including an image in your campaign can boost clickthrough rates by 42 percent. Images are also key to driving more conversions and sales. But not just any old image will do. There are some best practices that need to be followed if you want to get the most out of images in your email campaigns. In this post, we’ll show you how to use images effectively without breaking any of the rules set by various inbox providers—and hopefully get a few tips on using them creatively along the way!

Image size in email

The most important part of using images in email marketing is making sure they’re small and responsive.

A responsive image is an image that responds to the screen size of the device it’s viewed on. This means that if you send a responsive email template (which we recommend), your images will be sized appropriately for each person who views it based on their device.

So how do you make sure your images are properly sized? Here are some tips:

  • Use a service like Imgix or TinyPNG to compress and optimize your images before uploading them to your email marketing platform’s media library, which makes them smaller and easier for recipients’ devices to download.
  • Make sure all of your image files are as small as possible by removing unnecessary metadata from them, like EXIF data about where and when the photo was taken.

Subsection: Use small, responsive images

Use small, responsive images.

Responsive images are images that change based on the size of a device—a large image will appear on a large screen, and a small image will appear on a smaller screen. This is important because it gives you the option to show different versions of your image depending on the size of your customer’s screen, which makes for an optimal user experience. In contrast, non-responsive images look good everywhere (unless they don’t), but they don’t help with mobile optimization because there is only one version of each image file

How many images in an email?

When it comes to email design, there is a fine line between not using enough images and using too many. When you have too few images in an email, the reader’s attention may be lost or distracted by the lack of visual stimulation. On the other hand, if you have too many images in your email it can visually overwhelm your audience and distract them from reading your content or taking action on what you are trying to convey.

The best way to strike this balance is by making sure that each image serves its purpose in supporting the message being conveyed throughout the email. The best approach is to use relevant images that are relevant to each individual message within an overall brand strategy.

Email newsletter design best practices

The best way to get a good-looking email is to use a responsive email template. A responsive template will automatically adjust its layout based on the device it’s being viewed on, which means you don’t have to worry about whether your content looks good on mobile or desktop.

There are also some other best practices you can follow when designing your own emails:

  • Use a mobile-first approach. If you’re writing an article for your website and editing it for use in an email newsletter, make sure that you start with the mobile version and design from there. This ensures that your readers will be able to view all of the content without having images cut off at the bottom of their screens because they have too much information!
  • Use images that are relevant but not distracting. You want people who open up your emails to be able to read through what you wrote without feeling like they need their attention focused elsewhere (like on advertisements). However, if possible include images related directly back into what has been written so as not too distract from key points made within paragraphs above them (like headers).

Mailchimp image sizes

  • The image size should be no larger than 600px in width
  • The image size should be no larger than 600px in height
  • The image size should be no larger than 25MB.
  • The image size should be no larger than 25MB in size

Omnisend logo size

The Omnisend logo is a square shape, 200px x 200px in size. It’s retina ready, responsive and mobile-friendly so you can use it on all devices.

Omnisend image best practices:

  • User size for email marketing images is 300 px wide by 600 px tall (portrait) or 600px wide by 900px tall (landscape).
  • Image should be clear and visible in the preview pane of email clients.

Responsive images HTML email

Responsive images are the way to go with HTML emails. We recommend using the following image sizes:

  • 200px x 200px
  • 400px x 400px
  • 600px x 600px
  • 800px x 800px
  • 1000px x 1000px
  • 1200px x 1200px (or 1600 if you must)

By using responsive images, you avoid problems that arise from sending large files over mobile connections. These days, mobile devices are more than capable of rendering high-resolution images without any issues whatsoever—you just need to give them a chance!

How to use images in email marketing to improve your results

  • Use images to improve user experience.

Images can be used to increase open rates, click-through rates, conversion rates and sales. For example, the image below is from a promo code email that landed in my inbox recently. It’s asking me to sign up for their monthly newsletter on a particular topic (which I happen to like).

  • People who open promotional emails are more likely to make a purchase than those who don’t.


We’re confident that you’ll see a spike in your open rate and click-throughs after implementing these best practices. It’s easy to get lost along the way, but keep these tips in mind. You can also use this handy guide as a reference until you get the hang of it! Email marketing is a very lucrative channel for online businesses when done right, so don’t miss out on this opportunity to improve your campaigns by properly using images.

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