<base>

Specifies the base URL to use for all relative URLs in a document.

Estimated Support About

21.95% + 39.02% = 60.97%

Apple Mail

macOS

15

iOS

15

Gmail

Desktop Webmail

2021-12

1

iOS

2021-12

1

Android

2021-12

1

Mobile Webmail

2021-12

1

Outlook

Windows

2003

2007

2010

2013

2016

2019

Windows Mail

2021-12

macOS

16.56

Outlook.com

2021-12

1

iOS

2021-12

1 2

Android

2021-12

Yahoo! Mail

Desktop Webmail

2021-12

1 3 4

iOS

2021-12

1 3 4

Android

2021-12

1 3 4

AOL

Desktop Webmail

2021-12

1 3 4

iOS

2021-12

1 3 4

Android

2021-12

1 3 4

Samsung Email

Android

6.0

Mozilla Thunderbird

macOS

91.2

ProtonMail

Desktop Webmail

2021-12

iOS

2021-12

Android

2021-12

Fastmail

Desktop Webmail

2021-12

1 4

HEY

Desktop Webmail

2021-12

1

Orange

Desktop Webmail

2021-12

1

iOS

2021-12

Android

2021-12

LaPoste.net

Desktop Webmail

2021-12

SFR

Desktop Webmail

2021-12

iOS

2021-12

Android

2021-12

GMX

Desktop Webmail

2022-11

iOS

2022-11

Android

2022-11

1&1

Desktop Webmail

2022-11

Android

2022-11

Mail.ru

Desktop Webmail

2021-12

WEB.DE

Desktop Webmail

2022-11

iOS

2022-11

Android

2022-11