font size of message header

AFAIK - no

One can enlarge the " Look " of the e-mail without altering the actual Font Size using the Command + keyboard combination

jdtaos wrote:

Is there a way to change the message header (the part with "delete") font size in Mail version 14?

with the delete part...(?) not sure what you are refering to..

You can increase the font size in the

from Mail >Preferences>

for the email itself > including header

Mail User Guide for Mac - Apple Support

You mean this area ?

refer to below

jdtaos wrote:

(the part with "delete")

?