Color & Background

background

Desktop
  • AOL Desktop

    Partial. Fixed attachment is not supported.

  • Apple Mail 10
  • IBM Notes 9
  • Outlook 2000–03

    Partial. Slash syntax values are not supported.

  • Outlook 2007–16
  • Outlook Express

    Partial. Values containing background images are not supported.

  • Outlook for Mac
  • Postbox

    Partial. Slash syntax values are not supported.

  • Thunderbird
  • Windows 10 Mail
  • Windows Live Mail

    Partial. Values containing background images are not supported.

Mobile
  • Android 4.2.2 Mail

    Partial. Slash syntax values are not supported.

  • Android 4.4.4 Mail

    Partial. Fixed attachment is not supported.

  • AOL Alto Android app

    Partial. Fixed attachment is not supported.

  • AOL Alto iOS app
  • BlackBerry

    Partial. Fixed attachment is not supported.

  • Gmail Android app

    Partial. Fixed attachment is not supported.

  • Gmail Android app IMAP

    Partial. Background images are not supported.

  • Gmail iOS app
  • Gmail mobile webmail
  • Google Inbox Android app

    Partial. Fixed attachment is not supported.

  • Google Inbox iOS app
  • iOS 10 Mail
  • iOS 11 Mail
  • Outlook Android app

    Partial. Fixed attachment is not supported.

  • Outlook iOS app
  • Sparrow
  • Windows Phone 8 Mail

    Partial. Seems to only support background colors.

  • Yahoo! Mail Android app

    Partial. Seems to only support background colors.

  • Yahoo! Mail iOS app

    Partial. Slash syntax values are not supported.

Webmail
  • AOL Mail
  • G Suite
  • Gmail
  • Google Inbox
  • Outlook.com
  • Yahoo! Mail

    Buggy. For slash syntax values, it removes the slash character, making the value invalid.

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