[b112]

This isn't entirely true. While HTML email sometimes does have html tags in it, and can remotely download embedded images, it doesn't necessarily retrieve the asset from the person who sent it.

It could be anywhere, which is another knock against HTML email.

Which is why text only email is still king, and used in a lot of places still.

[array_key_first]

Also HTML email is hilariously broken on many clients. Particularly outlook.

[withinboredom]

Depends on which outlook. There’s the windows 10 version, the windows 11 version, and the office version. They’re all broken in different ways.