The email community banded together and tried to convince the Gmail team that supporting embedded styles and media queries would lead to a better user experience for their own users. For a long time, nothing seemed to change.
Finally, it looks like we
letsfixemail
Gmail Announces Support for Embedded Styles and Media Queries

Today Gmail made a huge announcement that will forever change the way we code emails. Gmail will be supporting embedded styles! That means... you got it. No more inlining!
Here's Gmail's documentation on what is supported.
Read Geoff Phillips analysis on the
Here's Gmail's documentation on what is supported.
Read Geoff Phillips analysis on the
Microsoft’s Slow March To Email Redemption

You might have tuned in to Litmus' "industry changing" announcement at the Litmus Conference that they will begin collecting feedback and bug reports on Microsoft's behalf for the various Outlook email clients. It is so good to hear that Microsoft is taking
Gmail No Longer Supports Interactive Email :(
Posted in Interactive Email, Interactive Email Tutorials, Kinetic Email, letsfixemail by Justin On July 1, 2016

As of today Gmail strips all attribute selectors and the :hover and :checked pseudo-class and that means no more interactivity in the Gmail inbox.
Yahoo! Mail adds overflow:auto to elements with max-width and max-height

Last week, the email geek-verse blew up when certain emails especially hybrid coded emails started breaking in Yahoo! Mail. Although Yahoo! Mail and Gmail has always converted height to min-height, Yahoo! Mail went the extra mile and began converting width to min-width
Outlook.com Alters Styles of Elements Next to Checkboxes
Posted in CSS Help, Interactive Email, Interactive Email Tutorials, Kinetic Email, letsfixemail by Justin On April 6, 2016

Sometime over the past two weeks, OWA - Office 365 Webmail or the new Outlook.com started introducing side effects to their processing of checkboxes in email. Styles of elements following checkboxes are either removed or styles applied to checkboxes are being appended
Gmail, We Need To Talk

I posted an "open letter" to Gmail on TechCrunch about why better HTML/CSS support will help Gmail's goal to get developers excited about innovations in email.
Read the article
Read the article
How I Helped Make Office 365 a Little Safer

A few months back, while testing clients for kinetic CSS support I stumbled upon something peculiar when I opened a test email in Office 365. A purple div was appearing at the bottom left of the browser window within the area
Gallery of Common Outlook Rendering Issues

The following are side-by-side screenshots comparing how some emails rendered in Outlook vs another mainstream email client such as Yahoo! Mail or Gmail. I have annotated the images to refer to the issues in the test email above...
The Outlook Team Reaches Out

I was recently contacted by Julia Foran a Program Manager on the Desktop Outlook team for some background on Outlook's rendering issues.
It must have been the Microsoft, It's Time to Address Outlook's Proprietary Email Format article or the needling