Provide the capability of allowing the user to select as his default the font type and font size he/she prefers to use.
have the user select the default type font and size he/she prefers to use. Now, we must go through selecting our preferred font and its size for every email we do. Sometimes if the content is fairly long the system reverts to your default and the result is text with a mixed font which then requires further editing. Someone suggested a "preferences" approach. That would work for me.