Hello ​@sun 

 Yes, image heavy emails can trigger spam filters or load slower, which hurts clicks. To improve performance:

keep a healthy text to image ratio (at least 60% text, 40% images).

Always add descriptive ALT text to images.

compress images for faster load times.

make sure links are in text as well, not only in images.

Test sending from a warmed, authenticated domain (SPF, DKIM, DMARC)

Run inbox placement tests to check if image-heavy designs land in spam/promotions.

If your audience prefers visuals, try a hybrid design images for appeal but with enough text to boost deliverability and engagement.

Hi ​​@sun! I send primarily image-heavy emails and maintain a deliverability score of 95, I actually wrote a blog post about this for Klaviyo last month – you can see that here. Generally it is definitely better to follow ​@MANSIR2094’s advice, but if you do want to continue with image-heavy emails I definitely recommend doing the following:

• live text headers and footers with a png logo
• email body split into multiple images – making sure that there are more smaller images rather than 1 enormous image will ensure that images load faster.
• alt text! Always include descriptive alt text for all images

I hope these tips help with improving deliverability in your image-heavy emails and subsequently improving click-rates. 

​@MANSIR2094 thank you so much for the reply! was so helpful. I just want to clarify one thing, the text should be plain text, not text on the image, right?
We do keep the text-to-image ratio, minimize file size, and follow other practices, but still seeing the result.

Hey ​@sun,

The text should be text inside a text box, or plain text, that’s correct! If you’re following best practices and using alt text, but are still seeing a higher click rate with text-based emails, another possibility is that your customers/subscribers simply prefer text-based emails. Not sure what your business is, but it’s possible that the type of customer you have just likes text-based emails a bit more.