srcset and sizes attributes
This is the description of the srcset and sizes attributes.
Outlook
Windows
2003
2007
2010
2013
2016
2019
Windows Mail
2020-01
macOS
2011
2016
16.80
Outlook.com
2019-05
2024-01
iOS
2019-05
Android
2019-05
Samsung Email
Android
6.0
Mozilla Thunderbird
macOS
60.3
Fastmail
Desktop Webmail
2021-07
HEY
Desktop Webmail
2020-06
LaPoste.net
Desktop Webmail
2021-08
1&1
Desktop Webmail
2022-11
Android
2022-11
Mail.ru
Desktop Webmail
2020-10
WP.pl
Desktop Webmail
2025-06