How to send a video in an email that people actually play

You can’t reliably play a video inside an email, and attaching the file usually fails. A thumbnail that links to the video works everywhere.

By the Bujua team. Updated October 21, 2026. 2 minute read.

In short: Attaching the file rarely works. A still image or short GIF of the video, linked to the video page, with one sentence saying what it covers and how long it is, works better. Gmail and Outlook won’t play embedded video, and attachments over about 20 to 25 MB bounce or turn into a cloud link anyway.

Why attaching or embedding doesn’t work

Size limits. Gmail caps attachments at 25 MB and offers a Drive link instead. Outlook’s default is 20 MB. A minute of screen recording can be bigger than that.
No playback in the inbox. Gmail and Outlook strip or ignore embedded video. Apple Mail plays some, which makes it unreliable for anyone else.
Spam filters. Large attachments and unusual HTML both hurt delivery.

The format that works

One line of context first. “Two minutes on why the invoice changed, and the one thing I need from you.”
A thumbnail that looks playable. A frame from the video with a play button, or a three second GIF of the opening. Link the image to the video.
The plain link below it, for email apps that block images.
The length. People open a two minute video. They postpone a fifteen minute one.

The first frame matters

The thumbnail is the subject line of a video. A good frame shows the thing being discussed, not the desktop: the dashboard, the proposal total, the design. In Bujua you can pick any frame as the thumbnail from the Edit tab.

Knowing whether they watched

Video pages tell you who watched and how far. If a client stopped before the price, you’ll know before the follow-up call, and you can answer the question they didn’t ask.

Questions

Can you embed a video in Gmail?

No. Gmail doesn’t play video inside an email. Link a thumbnail to the video page instead.

What is the maximum video size for email?

Gmail allows 25 MB per message and Outlook 20 MB by default. Most screen recordings are larger, which is why a link works better.