[squiggy22]

Web based mail clients are nearly as bad with how much CSS etc. they strip out. Gmail is particularly aggressive. Yes Outlook is terrible, but there's plenty of security conscious developers throwing baby out with bathwater when it comes to email design .

[spookyuser]

I don't know how inbox does it, but I like how some newsletters are rendered on it, the product hunt newsletter shows up as just the top three/four posts of the day.