tab-size

Estimated Support About

23.08% supported

Apple Mail

macOS

16

17

18

19

20

21

iOS

11

12

13

14

15

Gmail

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

Mobile Webmail

2022-07

Outlook

Windows

2007

2010

2013

2016

2019

2021

Windows Mail

2022-07

macOS

2022-07

Outlook.com

2022-07

2

iOS

2022-07

Android

2022-07

Yahoo! Mail

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

AOL

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

Samsung Email

Android

2022-07

Mozilla Thunderbird

macOS

2023-09

Windows

2023-09

ProtonMail

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

Fastmail

Desktop Webmail

2022-07

HEY

Desktop Webmail

2022-07

Orange

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

LaPoste.net

Desktop Webmail

2023-09

SFR

Desktop Webmail

2022-07

iOS

2022-07

Android

2022-07

GMX

Desktop Webmail

2022-09

iOS

2022-09

Android

2022-09

1&1

Desktop Webmail

2022-09

Android

2022-09

Mail.ru

Desktop Webmail

2022-07

1

WEB.DE

Desktop Webmail

2022-09

iOS

2022-09

Android

2022-09