@font-face
@font-face
in CSS allows to include your own fonts inside an email.
Mozilla Thunderbird
macOS
60.7
78.5
Fastmail
Desktop Webmail
2021-07
HEY
Desktop Webmail
2020-06
LaPoste.net
Desktop Webmail
2021-08
1&1
Desktop Webmail
2022-06
Android
2022-06
Mail.ru
Desktop Webmail
2020-10
WP.pl
Desktop Webmail
2024-08