How to make an email message not lose media when forwarding?

Question

Email

There is a letter. When sending, everything is good. Comes normally, adaptively. But as soon as you send it (to any mailer) it loses media. Those. falls apart on mobile phones, and mail.ru shows the PC version.
Styles are crammed into Remaining inline, how can I solve the problem? <style> </style>

Answer 1

When forwarding, a new letter is formed, with its own styles, the old letter is only quoted in it, while the text of the new letter and all quotes are located in one HTML part. If styles are not cut out, they can affect the display of a new letter, therefore, in most cases, styles are not copied into quoting, i.e. the effect is about the same as copying a piece of HTML.
Those. you can’t expect HTML to not fly at all when forwarding or responding, even if you don’t use styles at all, because quoting turns into something. If you want the letter to arrive unchanged, then you need to use not forwarding, but forwarding as an attachment.

Answer 2

@media queries in emails should not be used at all precisely because they do not work everywhere,
limit the width of the body of the letter, usually about 600px and work in it