Deliverability & the inbox
Gmail 102 KB clipping
Also known as: gmail clip · email clipping
Gmail's behaviour of truncating email HTML at 102 kilobytes — anything beyond that is hidden behind a "View entire message" link, cutting off unsubscribe footers, tracking pixels, and any content below the threshold.
Gmail's web and mobile clients truncate email HTML at 102 KB. When the full message exceeds that, Gmail shows the first 102 KB inline and hides the rest behind a "[Message clipped] View entire message" link. The user can click through but most don't. This breaks three things: unsubscribe links below the fold stop working for most recipients (major CAN-SPAM and GDPR risk), the tracking pixel at the bottom may not fire (inflating apparent non-opens), and engagement attribution for links below the clip cuts off. The common cause: inlined CSS (some email tools double-inline styles), image data-URI encoding, nested table-based HTML structures. The fix: audit HTML size pre-send; trim inline CSS; move below-fold content to a landing page linked from the email rather than embedded. The 102 KB threshold has been stable since 2014 despite repeated industry requests for expansion.