HTML5 semantics

This includes support for <article>, <aside>, <details>, <figcaption>, <figure>, <footer>, <header>, <main>, <mark>, <nav>, <section>, <summary>, <time> elements.

  • Apple Mail
  • Gmail
  • Outlook
  • Other clients

Apple Mail

macOS

10.3

iOS

10.3
12.4

Gmail

Desktop Webmail

2019-07
2

iOS

2019-07
2

Android

2019-07
2

Outlook

Windows

2003
2007
2010
2013
2016
2019

macOS

2011
2016

Outlook.com

2019-07
1 4

iOS

2019-07
1 4

Android

2019-07
1 4

Yahoo! Mail

Desktop Webmail

2019-07
4

iOS

2019-07
4

Android

2019-07
4

Mozilla Thunderbird

macOS

60.3

Orange

Desktop Webmail

2019-07

iOS

2019-07

Android

2019-07
3

Samsung Email

Android

6.0

SFR

Desktop Webmail

2019-07

iOS

2019-07

Android

2019-07

Notes

  • 1

    Partial. Only <time> is supported.

  • 2

    Partial. <details>, <main>, <nav> and <summary> are not supported. Opening and closing tags are replaced by <u></u>.

  • 3

    Partial. <article> is not supported.

  • 4

    Unsupported opening and closing tags are stripped.

Know something we don't?

Is any of the above data outdated? Or do you want to add a new email client to the list? Heads on to GitHub and edit the data file!

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Test it yourself

This feature was last tested on July 29, 2019.

If you want to test this feature in the same conditions as we did, you can get our test code and run a test by yourself. Make sure to follow our testing recommendations first.

View the test code View test results on Email on Acid