Definition
Autoplay video in email is the practice of embedding video that begins playing automatically when a recipient opens the message. True autoplay video is not supported in most email clients due to security, bandwidth and user-experience concerns.
Many email marketers simulate autoplay by using an animated GIF first frame or a static image with a play button overlay. When the recipient clicks the image, they are directed to a landing page or video host. This is the most reliable approach across clients.
A limited number of clients, including Apple Mail on some devices, support HTML5 video with autoplay attributes. Because support is inconsistent, most teams use a fallback strategy that shows a clickable image or GIF for clients that do not support native video.
Best Practices
- Use a static fallback image with a clear play button for clients that do not support video.
- Keep animated GIFs short and small to avoid slow loading and heavy data usage.
- Host the actual video on a fast landing page or video platform.
- Test video rendering across Apple Mail, Outlook, Gmail and mobile clients.
- Avoid autoplay with sound, which can frustrate recipients and trigger spam filters.
Related Glossary Terms
Above the Fold in Email
Above the fold in email refers to the content visible to a recipient before they scroll, a critical area for first impressions and primary calls to action.
Accessible CTA (Email)
An accessible CTA is a button or link coded with sufficient colour contrast, visible focus states, descriptive screen-reader text, and a minimum touch target of 44×44 pixels.
Adaptive Design
Adaptive design in email uses predefined layouts that adjust to specific device or client widths, rather than fluidly resizing to every possible screen.
AI-Generated Content in Email
AI-generated content in email is copy, images, code or subject lines produced by artificial intelligence tools to speed up campaign production and testing.
Alt Text
Alt text is the written alternative to an image in an email, displayed when images are blocked, slow to load, or consumed by screen readers.
AMP for Email
AMP for Email is a technology that allows interactive, dynamic content to live inside an email message, enabling forms, carousels and live updates.
Frequently Asked Questions
No. Gmail does not support autoplay video. Use a fallback image or animated GIF that links to the video.
Apple Mail supports HTML5 video on some versions, but autoplay is not guaranteed. Always provide a fallback.
A static image with a play button overlay is the most reliable fallback. It clearly signals that clicking will open the video.
Autoplay itself is not a major deliverability factor, but heavy emails and poor user experience can increase unsubscribes and spam complaints, which do affect reputation.
Keep animated GIFs under 1 MB when possible. Large GIFs load slowly and may be clipped by some clients.