animation in Yahoo Mail
Not supported animation is not supported in Yahoo Mail.
Works in 5 of 21 · partial in 1 · not supported in 15
Which clients
- Works
- Apple Mail, Apple Mail iOS, Samsung Mail, HEY Mail, Fastmail
- Partial
- Superhuman
- Not supported
- Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook Classic, Outlook iOS, Outlook Android, Outlook for Mac, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, Thunderbird, Proton Mail, AOL Mail
Your reader in Yahoo Mail sees the email without animation, even if it looks right where you tested it.
The fix for Yahoo Mail
Replace CSS animation with an animated GIF
<!-- Use an animated GIF for the effect -->
<img src="https://example.com/badge-animated.gif"
width="60" height="24" alt="New!"
style="display: inline-block; border: 0;" />Show the original
<style>
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.badge { animation: pulse 2s infinite; }
</style>
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What Yahoo Mail does with animation
The Emailens probe for animation on a real install counted as Yahoo Mail, captured 14 Oct 2026. It shows the problem, not the fix. Where animation is supported it shows: green (red means unsupported).
caniemail: animation is not supported in Yahoo Mail.
@emailens/engine 0.18.22 on the original code
Yahoo Mail does not support "animation".
Your next question
- Does box-sizing work in Yahoo Mail?
Works in 16 of 21 · not supported in 5
fix - Does visibility work in Yahoo Mail?
Works in 13 of 21 · not supported in 8
fix - Does text-shadow work in Yahoo Mail?
Works in 12 of 21 · not supported in 9
fix - Does word-break work in Yahoo Mail?
Works in 4 of 21 · partial in 12 · not supported in 5
fix - Does gap work in Yahoo Mail?
Works in 7 of 21 · partial in 9 · not supported in 5
fix - Does transform work in Yahoo Mail?
Works in 7 of 21 · partial in 1 · not supported in 13
fix
Questions
- How many email clients support animation?
- It works in 5 of 21, partial in 1, not supported in 15.
- What do I use instead of animation in Yahoo Mail?
- Replace CSS animation with an animated GIF.
- Does animation work in Yahoo Mail iOS?
- animation is not supported in Yahoo Mail iOS. Closest to Yahoo Mail: Yahoo Mail iOS, which agrees on 282 of the 298 features both are tested on.
To see what else in your email Yahoo Mail does not support, paste the whole email.
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Real captures 14 Oct 2026 on 10 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 7 Apr 2026 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping