What Gmail clipping is
Anything below the cut, often the footer, the unsubscribe link and the last offer, is only seen by readers who click through.
What counts toward the limit
So a 2 MB hero photo doesn't move the number, but every inline style attribute, every tracking-tagged link and every table cell does. The one image that does count is one embedded in the code itself as a data: URI: the checker above lists those separately because they're usually the biggest single thing you can remove.
Mobile apps can clip sooner
Klaviyo notes that mobile limits vary: roughly 20 KB on iOS, applied inconsistently, and about 75 KB on other devices. Treat 85 KB as the ceiling, not the target.
How to measure the right version
Paste the HTML you're about to send. Your email platform adds code at send time, such as link tracking and UTM parameters, so the sent email is usually a little larger than the template. In Klaviyo, the preview sidebar shows an estimated size that includes UTM parameters once the template is in a campaign or flow.
How to get under the limit
Klaviyo's suggested fixes
- Combine similar blocks, sections and column layouts.
- Use “All devices” blocks instead of separate desktop-only and mobile-only copies.
- Replace a header bar block with a logo image block plus a text block for the links.
- Remove section background images.
- Paste text as plain text so it doesn't bring formatting code with it.
- Turn embedded styles back on if they were disabled, after checking your recipients' inboxes don't require inline styles.
Image-sliced emails tend to be light on code, because each slice is a single image tag and its link. If yours is still near the limit, two things worth checking are long tracking URLs repeated on every slice and live-text sections pasted with formatting. Our Klaviyo rendering guide covers how sliced emails behave across inboxes.