Differences in display between Mail in iOS and macOS

I have another strange issue with Mail on iOS. When I receive a mail from a sender who uses Outlook/Exchange, the text is displayed incorrectly as seen in the linked image. On the Mac the same message is perfectly readable. Has anyone the same experience? Is there a solution?

It looks like HTML-formatted mail, and HTML content frequently involves CSS style sheets…

The style sheets may not have been tested on a screen as narrow as an iPhone. What happens if you rotate your phone into landscape orientation? Is it still messed up?

It’s also possible that the mail is using some feature that is running afoul of Apple’s iOS security model. Are you using anything like private relay or blocking external content? It may be that the page is using scripts that are not loading (or are not fully loading) on your phone.

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Thanks David, indeed these are HTML mails.
I tried landscape mode: no difference. The same unintended mix of text occurs on iPad too by the way.
I switched off the privacy options for mail in iOS: no difference.
What would help is a possibility within Mail for iOS to render email as text-only. I will submit that to Apple as a feature request.

I have seen other reports of such problems with Exchange. Normally it looks fine in webmail but messed up in Mail. Hard to know if it’s an Apple problem or an Exchange problem.

Could be Microsoft using a non-standard (or deprecated, or pre-standard , or proprietary) extension to HTML/CSS, which iOS Mail can’t render.

It could still be related to screen size. What happens if you shrink the message window down to a very small size on the Mac? Does it mess up there? (I’ve seen web pages that break with small window sizes).

I wonder also if it might be send in Microsoft’s old RTF format. Of course, if that was the case, then I’d expect any non-Microsoft mail viewer to show the message as plain text.

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