Dispay of Email File Size

Is there a viewing option that shows the file size (e.g.  25kb) of email messages?

The only thing I have found that may help is to download or save the file and then look at the properties. “Properties” within the program does not display size.

If you use the non-compact view (e.g., message on the bottom), file size is one of the available columns.
menu/view/layout/messages on the bottom