CSS Properties

cursor

CSS property · 2 supported, 4 partial, 10 unsupported across 21 clients

As of Oct 14, 2026, cursor fails or degrades in 19 of 21 email clients, treat it as progressive enhancement, never structure.

0/7 webmail, 2/6 desktop, 0/8 mobile clients support cursor fully.
Unsupported in Gmail, Gmail Android, Gmail iOS, Outlook 365 and 6 more.
Partial in Apple Mail, Yahoo Mail, Yahoo Mail Android, Proton Mail, behavior differs from browsers, test before relying on it.
Outlook Classic (Word engine, supported to at least 2029) does not fully support cursor, and its replacement changes little here; see the deprecation diff.
Across all clients, only 6 of 298 tracked HTML/CSS features render identically everywhere.

Source: caniemail.com (MIT), via the Emailens engine. Last tested upstream Jul 2, 2025, synced by Emailens Oct 14, 2026.

Client Support

Client	Category	Engine	Support
Gmail	webmail	Gmail Web	Unsupported^{See caveat 1}
Gmail Android	mobile	Gmail Mobile	Unsupported^{See caveat 1}
Gmail iOS	mobile	Gmail Mobile	Unsupported^{See caveat 1}
Outlook 365	webmail	Outlook Web	Unsupported
Outlook (New)	desktop	Outlook Web	Unsupported
Outlook Classic	desktop	Microsoft Word	Unknown
Outlook iOS	mobile	Outlook Mobile	Unsupported^{See caveat 2}
Outlook Android	mobile	Outlook Mobile	Unsupported
Outlook for Mac	desktop	WebKit	Unsupported
Apple Mail	desktop	WebKit	Partial^{See caveat 3}
Apple Mail iOS	mobile	WebKit	Unsupported^{See caveat 2}
Yahoo Mail	webmail	Yahoo	Partial^{See caveat 4}
Yahoo Mail Android	mobile	Yahoo	Partial^{See caveat 4}
Yahoo Mail iOS	mobile	Yahoo	Unsupported^{See caveat 2}
Samsung Mail	mobile	Samsung	Unknown
Thunderbird	desktop	Gecko	Supported
HEY Mail	webmail	WebKit	Unknown
Proton Mail	webmail	Proton	Partial^{See caveat 5}
AOL Mail	webmail	AOL	Unknown
Fastmail	webmail	Fastmail	Unknown
Superhuman	desktop	Blink	Supported

Documented caveats (5)

1.Gmail, Gmail Android, Gmail iOS: Cursor property is removed.
2.Outlook iOS, Apple Mail iOS, Yahoo Mail iOS: iOS assistive touch does not respond to cursor.
3.Apple Mail: Partial. URL is not supported.
4.Yahoo Mail, Yahoo Mail Android: Partial. Only supports: crosshair, help, move, pointer, progress, text, wait, auto, default, and all single-direction resize properties.
5.Proton Mail: Partial. URL buggy and only works inline.

Caveats recorded by caniemail.com (MIT) and carried verbatim, one entry per wording rather than per client.

Client-by-client behaviour for cursor

Fully supports cursor (2): Thunderbird, Superhuman.

Partial support (4): Apple Mail, Yahoo Mail, Yahoo Mail Android, Proton Mail. Expect rendering quirks unique to each engine. Partial support typically means a subset of values, an ignored shorthand, or sanitizer-specific rewrites.

No support (10): Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook iOS, Outlook Android, Outlook for Mac, Apple Mail iOS, Yahoo Mail iOS. Plan fallbacks for these clients before relying on cursor in production sends.

Behaviour unverified in: Outlook Classic, Samsung Mail, HEY Mail, AOL Mail, Fastmail.