required attribute

Required attribute on form elements

Estimated Support About

24.39% + 9.76% = 34.15%

Apple Mail

macOS

10.3
12.4

iOS

10.3
12.4

Gmail

Desktop Webmail

2019-09

iOS

2019-09

Android

2019-09
1

Mobile Webmail

2020-02

Outlook

Windows

2003
2007
2010
2013
2016
2019

Windows Mail

2020-01

macOS

2011
2016
2019
16.80

Outlook.com

2019-09
2024-01

iOS

2019-06

Android

2019-06

Yahoo! Mail

Desktop Webmail

2019-09

iOS

2019-09

Android

2019-09

AOL

Desktop Webmail

2019-09

iOS

2019-09

Android

2019-09

Samsung Email

Android

6.0
9.0

Mozilla Thunderbird

macOS

68.4

ProtonMail

Desktop Webmail

2020-03
2

iOS

2020-03

Android

2020-03

Fastmail

Desktop Webmail

2021-07

HEY

Desktop Webmail

2020-06

Orange

Desktop Webmail

2020-01
2
2021-03
2024-04

iOS

2020-01
2
2024-04

Android

2020-01
2
2024-04

LaPoste.net

Desktop Webmail

2021-08
2

SFR

Desktop Webmail

2020-01
2

iOS

2020-01

Android

2020-01

GMX

Desktop Webmail

2022-11

iOS

2022-11

Android

2022-11

1&1

Desktop Webmail

2022-11

Android

2022-11

Mail.ru

Desktop Webmail

2020-10

WEB.DE

Desktop Webmail

2022-11

iOS

2022-11

Android

2022-11

WP.pl

Desktop Webmail

2024-04

Notes

  • 1

    Partial. Only supported with non Google accounts.

  • 2

    Partial. The required attribute is supported, but form elements are not.

Know something we don't?

Is any of the above data outdated? Or do you want to add a new email client to the list? Heads on to GitHub and edit the data file!

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Test it yourself

This feature was last tested on September 10, 2019.

If you want to test this feature in the same conditions as we did, you can get our test code and run a test by yourself. Make sure to follow our testing recommendations first.

View the test code