# Gmail clipping checker: will Gmail clip your email? | Letterhead Source: https://www.tryletterhead.com/tools/gmail-clipping-checker.html _Free tool · Gmail clipping checker_ # Will Gmail clip your email? Gmail cuts off messages with more than about 102KB of HTML. Paste your email to see how heavy it is and what's making it heavy, along with the links, readability and bounce risk checks from Letterhead's editor. Free, no signup. Check a domain Check an email Sending domain Check domain We check the DKIM selectors Google Workspace, Microsoft 365 and the big email platforms use. If yours isn't one of them, paste the full source of an email you sent, as it arrived (in Gmail: "Show original"), into "Check an email" and we'll read it from there. Know your DKIM selector? DKIM selector It's the s= value in an email's DKIM-Signature header. Your email Paste the full source of a received copy (in Gmail: "Show original") and we'll also find the DKIM selector your domain signs with. Check email _About clipping_ ## Why Gmail clips your newsletter When an email's HTML is bigger than about 102KB, Gmail shows the first part and replaces the rest with "[Message clipped] View entire message". Everything below the cut stays hidden until the reader clicks: your sponsor, your last story and, usually, your unsubscribe link. The open-tracking pixel often sits near the bottom of an email too, so a clipped send can also undercount your opens. ### What makes an email heavy - Inline styles repeated on every element, often added by templates and editors. - Long tracking links, repeated for every story. - Code pasted in from other tools, like comments and empty tags. - Not images, unless they're embedded in the code. Gmail measures the HTML, not the pictures it links to. ### Check it, then see it The checker weighs your HTML and shows what's making it heavy. To see the cut for yourself, run the same HTML through [Inbox preview](../tools/inbox-preview.html), which photographs it in a real Gmail inbox and marks whether it was clipped. ## In Letterhead, these checks run while you write. Every issue gets a content check before it goes out: bounce risk, links that won't work, what an AI inbox will read, readability, and email weight with what's making it heavy. Letterhead also strips redundant styling from what it sends, so your newsletter goes out lighter than you wrote it. The old wayIn LetterheadFind out Gmail clipped you when a reader asks where the unsubscribe link went.Email Weight shows how heavy every issue is, and what's making it heavy, before you send.Click every link by hand the morning of the send.Links with no working destination are flagged in the editor before you send.Paste the HTML into another tool to slim it down.Letterhead strips redundant styling from what it sends, so it goes out lighter than you wrote it. [Book a test drive](../lp/test-drive.html) _FAQ_ ## Questions about Gmail clipping What is Gmail's clipping limit? About 102KB of HTML. Gmail doesn't document the number; senders have measured it. It applies to the HTML, not to linked images. Does a clipped email hurt deliverability? Not directly. But readers can't reach your unsubscribe link without clicking through, and some will mark the email as spam instead, which does hurt. How do I make my email lighter? Cut repeated inline styles, shorten tracking links and remove pasted-in code. In Letterhead, Email Weight shows what's heavy while you write, and sends go out with redundant styling stripped. Do you keep the domain or email I check? No. We don't store what you paste or the domain you look up. _More free checks_ ## Check the rest before you send. - [**Preflight**SPF, DKIM, DMARC and a content check, together](../tools/preflight.html) - [**SPF checker**Missing, duplicate and too-open SPF records](../tools/spf-checker.html) - [**DMARC checker**Your policy, and what Gmail, Yahoo and Outlook require](../tools/dmarc-checker.html) - [**DKIM checker**Find your selector and check the key](../tools/dkim-checker.html) - [**Inbox preview**Your email in real Gmail and Outlook.com inboxes](../tools/inbox-preview.html) - [**Ghost Finder**Is this address real, or a ghost?](../tools/ghost-finder.html) - [**Email list cleaning**Keep bad addresses off your list](../tools/email-list-cleaning.html) - [**Email verifier**Check if an email address is valid](../tools/email-verifier.html) - [**Email spam test**Your email and domain, checked before you send](../tools/email-spam-test.html) - [**Outlook email preview**See it in a real Outlook.com inbox](../tools/outlook-email-preview.html) [All free tools](../tools/) [See it in Letterhead →](../lp/test-drive.html) × The Letterhead Brief Don't fill this out if you're human: Email address Subscribe One email a week. Unsubscribe anytime. By submitting, you agree to our [Privacy Policy](../legal/privacy-policy.html). [Or book a 15-minute test drive →](../lp/test-drive.html) Not now You're on the list. The Brief lands once a week. Want these checks running on your own newsletter? [Book a test drive →](../lp/test-drive.html)