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Email quirks and bugs

Results 101 email-bugs issues
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The [desktop webmail of Orange.fr](https://webmail.orange.fr) incorrectly prefixes CSS comments in a `` tag, making a following `@media` declaration invalid. The following styles… ```html /* Hello world */ @media { .foo...

Other clients

Yesterday, an interesting conversation was started on the [#emailgeeks Slack](https://email.geeks.chat/) by @cossssmin regarding Gmail clipping limit. > Do we have a source for the magic 102KB message size Gmail clipping...

discussion
Gmail

I want to pass a body containing break lines `\n` to my mailing app through a `mailto` link. Example : ``` html

Gmail

Attempting to vertically align a `` within a `` in Outlook 2013/2016/2019/365 will fail if the `` is also being aligned with the `align` attribute. **Example Code:** ``` Button ```...

Outlook

Gmail removes any `` tags or inline `style` attribute that contains an uppercase `!IMPORTANT`declaration. The following code… ``` html div { background:#2ECC40; } p { color:#fff !important; } div {...

Gmail

### Problem Outlook iOS removes the `doctype`, which means it renders it in WebKit quirks mode ([1](https://developer.mozilla.org/en-US/docs/Web/HTML/Quirks_Mode_and_Standards_Mode), [2](https://www.quirksmode.org/css/quirksmode.html)). Since `display: block;` does not work on `` in quirks mode, you...

Outlook

The [mobile webmail of french provider La Poste](https://m.laposte.net/) has a generic style rule that resets `width` on all elements. ```css .email__body-content * { width: auto !important; } ``` One possible...

Other clients

Gmail and Yahoo convert the CSS `height` property to `min-height`. The following code : ``` html ``` …is turned into : ``` html ``` This is problematic because the image...

Yahoo

**Example:** `ul { padding: 0; }` was ignored. Yahoo added its `.undoreset ul { padding-left: 40px; }` ```css body { font-family: Helvetica, Arial, sans-serif; font-size: 12px; color: #333333; line-height: 16px;...

Yahoo

Background-images aren't loaded in Office365 in Litmus and in my office365 as well. They only show when you click on “To always show content from this sender, click here”. Because...

Outlook