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text-shadow in Gmail Android

Not supported text-shadow is not supported in Gmail Android.

Works in 12 of 21 · not supported in 9

Which clients
Works
Outlook 365, Outlook Android, Apple Mail, Apple Mail iOS, Yahoo Mail iOS, Samsung Mail, Thunderbird, HEY Mail, Proton Mail, AOL Mail, Fastmail, Superhuman
Not supported
Gmail, Gmail Android, Gmail iOS, Outlook (New), Outlook Classic, Outlook iOS, Outlook for Mac, Yahoo Mail, Yahoo Mail Android

Your reader in Gmail Android sees the email without text-shadow, even if it looks right where you tested it.

The fix for Gmail Android

Use font-weight or border-bottom as alternatives to text-shadow

after
.glow {
  /* text-shadow is not supported in Gmail, Outlook, Yahoo.
     Use font-weight or letter-spacing for emphasis instead. */
  font-weight: bold;
  letter-spacing: 0.5px;
}
Show the original
before
.glow {
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

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What Gmail Android does with text-shadow

@emailens/engine 0.18.22 on the original code

Gmail Android does not support "text-shadow".

Your next question

Every feature in Gmail Android · text-shadow in every client

Questions

How many email clients support text-shadow?
It works in 12 of 21, not supported in 9.
What do I use instead of text-shadow in Gmail Android?
Use font-weight or border-bottom as alternatives to text-shadow.
Does text-shadow work in Gmail iOS?
text-shadow is not supported in Gmail iOS. Closest to Gmail Android: Gmail iOS, which agrees on 273 of the 300 features both are tested on.

To see what else in your email Gmail Android does not support, paste the whole email.

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Real captures 14 Oct 2026 on 11 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 28 Feb 2019 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping · the Gmail capture is not counted (it skips Gmail's sanitiser)