How to use a Lottie animation in email
Email clients don't execute JavaScript, so a Lottie player can never run in an inbox. The dependable path is converting the animation to an animated image and treating it like any other email asset.
GIF is the only safe animation format for email
Animated GIFs play in effectively every client — Apple Mail, Gmail, Outlook web and mobile. The one holdout is classic Outlook for Windows, which shows only the first frame; design frame one to carry your message so the fallback still works.
APNG and video embeds have patchy-to-no support across clients. Don't ship them to a list you care about.
Keep it small and sized to your template
Inbox weight matters: aim well under 1MB. Lower the frame rate (12–15fps usually reads fine for UI-style motion), export at 1× to your template's column width, and keep the loop short. A transparent GIF sits cleanly on your email's background color.
The workflow
Convert the Lottie to GIF, check the exported size, upload it to your ESP or image host, and embed it as a normal <img> with alt text. Test in Outlook desktop before the big send — that first frame is what a chunk of B2B recipients will see.