Browse by...
Home Resources Blog

As image blocking in email continues to become the norm, one absolute must is to make sure you include the width and height attributes in your image tags.

When most email clients (especially desktop based ones like Outlook) disable images, they show an empty image placeholder in its place. Because these email clients don’t actually download the images from the server, the only way they can figure out the dimensions of that placeholder is to look at the included width and height attributes. If none or only one is provided, they just take a guess, which in almost every case results in completely destroying what’s left of your design.

Here’s a perfect example of this in action. Just this morning I received an email newsletter that only specified the height for most images in the email, and not the width. When Outlook displayed the email, it got the height right, but was way off on the width side. Here’s how the email looked when I first opened it:

The original email with images disabled

To see a comparison of how it’s supposed to look, here’s a screenshot of the email with images enabled:

The original email with images enabled

By not including the width attribute in any image tags, Outlook had no idea what width to use and its best guess was unfortunately way off. This made an otherwise readable email a complete nightmare that was almost impossible to get anything out of.

To provide a comparison, I checked out the source and added the correct width attribute to each image to see what the new results would be. Here’s a screenshot of the new version that took about 5 minutes to update:

The improved email with images disabled

The updated version that includes all width and height attributes is a big improvement over the initial version. It clearly resembles the intended design and I can easily scan the table of contents and start scrolling to read the rest of the content. The email is completely usable even with no images being visible.

While there are certainly better examples of emails designed to look and work well with images disabled, the point is still very convincing. By ensuring width and height attributes are present for all image tags, we give our subscribers a much better chance of getting a usable email, even with images disabled.

This blog provides general information and discussion about email marketing and related subjects. The content provided in this blog ("Content”), should not be construed as and is not intended to constitute financial, legal or tax advice. You should seek the advice of professionals prior to acting upon any information contained in the Content. All Content is provided strictly “as is” and we make no warranty or representation of any kind regarding the Content.
Straight to your inbox

Get the best email and digital marketing content delivered.

Join 250,000 in-the-know marketers and get the latest marketing tips, tactics, and news right in your inbox.

Subscribe

Get started with Campaign Monitor today.

With our powerful yet easy-to-use tools, it's never been easier to make an impact with email marketing.

Try it for free