Related terms


Email marketing platform with everything you need to design, send campaigns, and perform upmost efficient tracking


Image blocking

Image blocking is a feature included in email managers that prevents the automatic download of images from servers. When one of the recipients to whom we send the newsletter has it activated, its visualisation is not counted as the transparent image that allows us to know that they have opened the email cannot be loaded. 

Manage your email and SMS campaigns from a single tool, easy to use and in English. Try it now!

What happens if one of my subscribers has image blocking activated?

As we have already said, if one of your subscribers has image blocking activated, it will not be possible to count their opening and, therefore, it will not be shown in the statistics. In addition, they will not see any of the images that you include in your campaign, so it is very important to find a balance between text and image that allows them to follow your newsletter without having the images downloaded.

For this reason, it is very important to always fill in the "Alternative Text" field when you upload an image to one of your campaigns. This field will not only help us in terms of accessibility, but also when someone has the image block, it will show them the text so that it will be easier for them to follow the information we have sent them and not miss anything.

How to improve the effectiveness of emails when images are blocked?

When images are blocked by default, it is important to keep in mind a few things that can help our messages to be more successful among our readers. First, have a known sender and a subject line that is sufficiently suggestive that contacts will decide to open it. Also, it is important not to hide the "view in browser" option. This way those who want to see the full email with all the images will be able to do so. 

The preview will also be very important: if the images are blocked, we must make the most of the text to get our subscribers to decide that they are going to open our email.

And in relation to the body of the email, it is important to bear in mind that there are buttons that are immune to image blocking, so our CTAs will not lose effectiveness. In the same way, it is important to choose to include company logos in blocks of text using a typography that is as similar as possible rather than embedding an image and end up sending a newsletter where the logo of the company or brand is not visible.