Updated data for Orange.fr’s new desktop webmail

Orange.fr is currently rolling out a new desktop webmail. And I am afraid it is not a good news.

Out of the 179 HTML and CSS features tested, the new webmail only supports 95 features (from previously 156). In our Email Client Support Scoreboard, Orange.fr’s desktop webmail is falling from the 6th position to the 25th position.

Among the most glaring regressions are CSS properties like background longhand properties (background-image, background-cover, …), border-radius, display:flex or CSS units (like rem, vw or vh). And it also filters out the !important keyword, making responsive emails harder to build. The webmail also drops support for responsive images with <picture> or srcset. And it also no longer supports a lot of accessibility related HTML attributes (like lang, role or any aria attribute).

Here’s a full comparison of the old webmail versus the new webmail.

Orange Old Desktop Webmail Orange New 2021 Desktop Webmail
align-items Supported Not supported
@font-face Partially supported Not supported
background Supported Partially supported
background-blend-mode Supported Not supported
background-clip Supported Not supported
background-color Supported Not supported
background-origin Supported Not supported
background-size Supported Not supported
border-image Supported Not supported
border-radius Supported Not supported
box-shadow Supported Not supported
clip-path Supported Not supported
display:flex Supported Not supported
display:grid Supported Not supported
filter Supported Not supported
flex-direction:column Supported Not supported
flex-wrap: wrap Supported Not supported
font-weight Supported Partially supported
inline-size Supported Not supported
justify-content Supported Not supported
list-style-image Supported Not supported
mix-blend-mode Supported Not supported
opacity Supported Not supported
overflow Not supported Supported
:target Supported Not supported
::after Supported Not supported
::before Supported Not supported
Chaining selectors Supported Not supported
Child combinator Supported Not supported
text-decoration-color Supported Not supported
text-decoration-thickness Supported Not supported
text-underline-offset Supported Not supported
transform Supported Not supported
CSS calc() function Supported Not supported
ch unit Supported Not supported
initial unit Supported Not supported
rem unit Supported Not supported
vh unit Supported Not supported
vmax unit Supported Not supported
vmin unit Supported Not supported
vw unit Supported Not supported
CSS Variables (Custom Properties) Supported Not supported
visibility Supported Partially supported
address Supported Not supported
Anchor links Partially supported Not supported
aria-describedby attribute Supported Not supported
aria-hidden attribute Supported Not supported
aria-label attribute Supported Not supported
aria-labelledby attribute Supported Not supported
aria-live attribute Supported Not supported
<audio> element Supported Not supported
<bdi> element Supported Not supported
<dialog> element Supported Not supported
lang attribute Supported Not supported
<link> element Supported Not supported
<marquee> element Supported Not supported
<meter> element Supported Not supported
<picture> element Supported Not supported
<progress> element Supported Not supported
required attribute Partially supported Not supported
role attribute Supported Not supported
<rp> element Supported Not supported
<rt> element Supported Not supported
<ruby> element Supported Not supported
<select> element Not supported Supported
HTML5 semantics Supported Not supported
srcset and sizes attributes Supported Not supported
Embedded <svg> image Supported Not supported
<textarea> element Not supported Supported
valign attribute Partially supported Supported
<video> element Supported Not supported
<wbr> element Supported Not supported
Base 64 image format Not supported Supported
TIFF image format Supported Not supported