linear-gradient in Outlook 365
Not supported linear-gradient is not supported in Outlook 365.
Works in 9 of 21 · partial in 2 · not supported in 10
Which clients
- Works
- Gmail, Gmail iOS, Apple Mail, Apple Mail iOS, Thunderbird, HEY Mail, Proton Mail, Fastmail, Superhuman
- Partial
- Gmail Android, Samsung Mail
- Not supported
- Outlook 365, Outlook (New), Outlook Classic, Outlook iOS, Outlook Android, Outlook for Mac, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, AOL Mail
Your reader in Outlook 365 sees the email without linear-gradient, even if it looks right where you tested it.
What to do instead in Outlook 365
Add solid color fallback for gradient backgrounds
<td style="background-color: #667eea;
background-image: linear-gradient(135deg, #667eea, #764ba2);
padding: 40px; color: #fff;">
Content here
</td>Show the original
<td style="background: linear-gradient(135deg, #667eea, #764ba2);
padding: 40px; color: #fff;">
Content here
</td>A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →
What Outlook 365 does with linear-gradient
The Emailens probe for linear-gradient on a real install counted as Outlook 365, captured 14 Oct 2026. It shows the problem, not the fix. Where linear-gradient is supported it shows: amber to white gradient (grey means unsupported).
caniemail: linear-gradient is not supported in Outlook 365.
This Outlook.com install drops the <style> in the head, so only inline styles apply.
Your next question
- Does radial-gradient work in Outlook 365?
Works in 10 of 21 · partial in 1 · not supported in 10
- Does calc work in Outlook 365?
Works in 8 of 21 · partial in 2 · not supported in 10 · 1 untested
- Does clamp work in Outlook 365?
Works in 6 of 21 · partial in 3 · not supported in 11 · 1 untested
- Does conic-gradient work in Outlook 365?
Works in 6 of 21 · partial in 1 · not supported in 13 · 1 untested
- Does max work in Outlook 365?
Works in 6 of 21 · partial in 3 · not supported in 11 · 1 untested
- Does min work in Outlook 365?
Works in 6 of 21 · partial in 3 · not supported in 11 · 1 untested
Every feature in Outlook 365 · linear-gradient in every client
Questions
- How many email clients support linear-gradient?
- It works in 9 of 21, partial in 2, not supported in 10.
- What do I use instead of linear-gradient in Outlook 365?
- Add solid color fallback for gradient backgrounds.
- Does linear-gradient work in Outlook (New)?
- linear-gradient is not supported in Outlook (New). Outlook 365 and Outlook (New) differ on 1 feature: text-shadow.
To see what else in your email Outlook 365 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 29 Dec 2021 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping