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@font-face in Samsung Mail

Works @font-face works in Samsung Mail.

Works in 6 of 21 · not supported in 15

Which clients
Works
Apple Mail, Apple Mail iOS, Samsung Mail, Thunderbird, HEY Mail, 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, Proton Mail, AOL Mail, Fastmail

The fix for the clients that need it

Needed in 15 of 21: Gmail, Gmail Android, Gmail iOS and 12 more.

Add web-safe font fallback stack

instead
/* Keep @font-face for clients that support it */
@font-face {
  font-family: 'CustomFont';
  src: url('custom.woff2') format('woff2');
}
h1 {
  font-family: 'CustomFont', Arial, Helvetica, sans-serif;
}
Show the original
before
@font-face {
  font-family: 'CustomFont';
  src: url('custom.woff2') format('woff2');
}
h1 { font-family: 'CustomFont'; }

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What Samsung Mail does with @font-face

caniemail record, tested upstream 19 Dec 2023

  • Not supported when using a Microsoft email address; outlook, live, hotmail, etc.

Your next question

Every feature in Samsung Mail · @font-face in every client

Questions

How many email clients support @font-face?
It works in 6 of 21, not supported in 15.
Does @font-face work in Apple Mail?
@font-face works in Apple Mail. Closest to Samsung Mail: Apple Mail, which agrees on 248 of the 297 features both are tested on.

To see what in your email Samsung Mail does not support, paste the whole email.

The checker needs a computer screen.

caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 19 Dec 2023 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping