Gmail clips emails over 102KB. Yours doesn’t have to be one of them.
“[Message clipped] — View entire message” hides your content, your CTA, and sometimes your unsubscribe link. The pre-send cleanup makes sure it never shows.

- Gmail’s clipping threshold for HTML
- 102KB
- the size penalty base64 inline images pay
- +33%
- to minify, compress, and re-check
- 1 click
Know the risk before the send report tells you.
Every approved email gets measured against the clipping threshold: total HTML weight, inline-image bloat, and oversized attachments — presented as a simple gauge with the specific culprits called out.
- Live size gauge against the 102KB limit
- Inline base64 images flagged individually
- Runs automatically after approval

Fixes that respect your markup.
Minification strips the dead weight — whitespace, comments, editor cruft — while keeping the fixes email clients depend on, like Outlook conditional comments. Image compression re-encodes and rehosts heavyweight images. You get a before/after size and a preview of the cleaned email before anything is exported.
- html-crush minification, Outlook-safe
- Server-side image re-compression & hosting
- Before/after sizes for the audit trail

Built into the moment you already have
Cleanup runs right after approval — the last stop before your ESP.
- 1
Approval lands
Once a campaign is approved, Proofel offers a pre-send check automatically.
- 2
Size gets measured
HTML weight vs the 102KB Gmail threshold, plus per-image bloat flags.
- 3
One click cleans it
Minified HTML, compressed images, and a before/after you can verify.
Gmail kept clipping our newsletter and we could never tell why. One cleanup pass took it from 128KB to 64KB and the “View entire message” link disappeared for good.
Questions, answered
- Why is my email clipped in Gmail?
- Gmail truncates any message whose HTML exceeds roughly 102KB, hiding the rest behind a “[Message clipped] View entire message” link. Clipping cuts off content and can hide your unsubscribe link. The usual causes are editor-generated markup, inline (base64) images, and leftover comments/whitespace — all things a minify-and-compress pass removes.
- Will minification break my email’s rendering?
- The cleanup strips whitespace and comments but preserves the markup that matters — including Outlook conditional comments (the <!--[if mso]> fixes). You review the cleaned version in Proofel before exporting it, so nothing ships unseen.
- What happens to inline base64 images?
- They’re the biggest clipping culprit: base64 encoding inflates images by ~33% and counts against the HTML budget. Cleanup can extract, re-compress, and host them, replacing the blob with a normal image URL.
Approved should mean ready.
Run the pre-send check on your next campaign and see what Gmail would have clipped.
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