Office logo at the left top-> Word Options If the versions don’t match, use the Registry solution at the bottom of this article. If your version of Word matches your version of Outlook, then you can make the change from within Word. You can change this default, but how and where you must change it depends on your version of Outlook and whether or not you have the same version of Word installed as well. If no font has been specified in the message, Outlook will fall back to 12pt Times New Roman by default. Is there any way that I can change this default font to something different than 12pt Times New Roman? For instance, 10pt Arial?
This is of course because Outlook uses Times New Roman as the default font when none is specified.
So although the sender thinks that he/she is sending a message in the Arial format, it actually arrives in Times New Roman on my computer. Several mail applications and web mail services do not actually specify a font when composing and sending a message in HTML format.
