Can you mark an email as urgent with the standard mail program?

I have found a workaround for this problem. I'm the Emoji keyboard there is an icon of an envelope with the red arrow above it ( ). I place that in the subject line at the start, and it works really well.

(Correcting typos in my post)

I have found a workaround for this problem. On the Emoji keyboard there is an icon of an envelope with the red arrow above it. I place that in the subject line at the start, and it works really well.