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There’s a heated debate in the email world right now, and it’s not about subject lines or send times. It’s about whether you should build your emails entirely out of images.

On one side, you’ve got agencies and DTC brands cranking out these gorgeous, pixel-perfect emails that look identical in every inbox. On the other side, you’ve got deliverability experts and accessibility advocates pulling their hair out.

So who’s right? And more importantly, should you be sending image-only emails?

Let’s break down both sides.

The Case for Image-Only Emails

I get why people love them. When you send an image-only email, you know exactly what your subscriber is going to see. It’ll look the same in Gmail, Outlook, Apple Mail, Yahoo. Everywhere. No weird formatting issues. No text that suddenly turns purple in dark mode. No layout breaking in Outlook 2016.

This consistency is especially appealing to highly visual brands. DTC companies, fashion retailers, lifestyle brands. They want their emails to look like their Instagram feed. And honestly? A lot of those emails are beautiful. We feature tons of them on Email Love because they’re genuinely inspiring from a design perspective.

The design process is also simpler. You don’t have to worry about CSS support across different email clients. You don’t have to test dark mode variations. You just design it, export it as an image, and ship it.

And here’s the thing that really fuels this debate: big brands send image-only emails all the time and still land in the inbox. I’ve seen major retailers blast millions of image-only emails without obvious deliverability issues. So if it doesn’t hurt your inbox placement, and it makes design easier, why not?

The Case Against Image-Only Emails

Here’s where things get messy.

Will They Even Get Delivered?

The old wisdom says image-only emails look like spam. The logic goes: if all your content is locked in an image, spam filters can’t read what you’re actually saying. So by sending image-only emails, you look like a spammer and you’re more likely to end up in the spam folder.

That’s the theory, anyway.

But here’s where I get confused. I’m not a deliverability expert, but I watch thousands of emails come through Email Love every week. And I see tons of major brands sending image-only emails that clearly land in the inbox just fine. Big retailers, well-known DTC brands, companies with massive email programs. They’re doing it without apparent consequences.

So does it actually hurt deliverability? I honestly don’t know if we can say it does, at least not definitively. My take? It might not tank your deliverability, but it creates enough other problems that it’s not worth finding out.

AI Summaries Can’t Read Them

AI email summaries (like the ones Gmail is rolling out) can’t parse image content well. So if someone’s relying on those summaries to decide what to read, your image-only email is already at a disadvantage before they even open it. They’ll see a generic summary or nothing at all, while your competitor’s HTML email gets a nice, readable preview of what’s inside.

Mobile Performance Suffers

A lot of image-only emails look terrible on mobile. The text is tiny. The images don’t scale properly. You’re squinting at product descriptions or trying to tap a CTA button that’s the size of a grain of rice.

Some brands handle this okay by designing specifically for mobile, but many don’t. And unlike responsive HTML emails that can reflow content for smaller screens, image-only emails are stuck with one fixed layout.

But even when the design is solid, there’s another issue: loading time. Image-heavy emails can take forever to load on mobile devices, especially if someone’s on a slower connection or has spotty service. And you know what happens when your email is still loading after a few seconds? People move on. They’re not waiting around for your 2MB promotional email to render.

This isn’t a minor inconvenience. Slow load times kill email performance. If your email doesn’t load within a couple seconds, it might as well not exist.

Accessibility Takes a Backseat

Screen readers can’t read text that’s embedded in an image. Yes, you can add alt text to describe the image, but that’s a workaround, not a solution. You’re basically asking visually impaired subscribers to settle for a worse experience.

Dark Mode Users Get Burned

I know a lot of people who love image-only emails specifically because they can control how their email looks in dark mode. But here’s the thing: when someone turns on dark mode, they’re making a choice about how they want to read content.

Forcing them to view your bright, light-mode email when they specifically chose dark mode? That’s not respecting their preference. And honestly, if someone has dark mode on, there’s usually a reason (eye strain, sensitivity to light, personal preference).

Imagine someone with light sensitivity opening your bright white email at 10pm. That’s not just annoying—it’s physically uncomfortable.

Personalization Becomes Harder

Try pulling in someone’s first name, account balance, or recent purchase into an image-only email. You can’t. Not without tools like Movable Ink or NiftyImages, and that’s middleware many teams don’t have access to.

This often means image-only emails end up being more generic and blast-y. They’re sent to everyone because you can’t easily personalize them. And generic, batch-and-blast emails are exactly what subscribers are tired of.

Sure, you can use conditional logic to swap out different images for different segments, but now you’re maintaining multiple image files for every variation. That’s a production nightmare that scales poorly.

Translation Becomes a Headache

If you’re sending multilingual emails, image-only emails probably create more work for you. Every language needs its own image file. That means if you’re sending to three markets, you’re now managing three versions of every image in your email. Update the design? Now you need to update and export three separate image files.

With HTML emails, you can swap in translated text dynamically without touching the design. The layout stays the same, the code stays the same, you’re just pulling in different text strings. It’s cleaner, faster, and way less prone to errors.

Some Email Types Just Don’t Work

Cart abandonment emails? Transactional receipts? Password resets? Long-form newsletters? None of these work as image-only emails. You need dynamic, personalized text for these to work properly.

So even if you love image-only emails for your promotional campaigns, you’re still going to need to build HTML emails for a big chunk of your program.

So What’s the Verdict?

Does sending image-only emails automatically destroy your deliverability? I’ve seen too many big brands do it successfully to say it’s a dealbreaker.

But hold on. You might be thinking: “Andy, you feature loads of image-only emails on Email Love! Aren’t you being a bit hypocritical here?”

Fair question. My position on this is that you can still take design and content inspiration from image-only emails. Even if I don’t agree with how they’re built, I still find them inspiring. The layouts, the color choices, the way they structure their message—all of that is valuable to study and learn from. But being inspired by something doesn’t mean you should copy the execution exactly.

Does sending image-only emails create a worse experience for a lot of your subscribers? Yeah, it does.

It’s harder to read on mobile. It takes longer to load. It’s not accessible. It disrespects dark mode preferences. It limits personalization. And it might hurt your visibility in AI-powered inbox features.

The question isn’t really “will this get delivered?” It’s “is this the best experience I can give my subscribers?”

The Better Way

Build responsive, accessible emails using HTML and text. Yes, it’s more work upfront. Yes, you need to test across email clients. But you end up with emails that work for everyone. People on mobile, people using screen readers, and people who prefer dark mode.

You can still make them beautiful. You can still maintain brand consistency. You just need a solid email design system to keep things organized. We ran a webinar on how to build an effective email design system with the Email Love Figma Plugin here.

If you want to see how other brands are handling this balance between beautiful design and accessibility, we break down real campaigns every week on Email Love. Check out our gallery of emails that manage to balance HTML text with beautiful photography here.

What Do You Think?

Are you team image-only or team HTML? Have you seen deliverability issues with image-heavy emails, or has it been fine for you? Email me at [email protected] and let me know. I’m genuinely curious where people land on this.

Much love,
Andy

Email: [email protected]
Twitter: @emaillove