Can we change the font in the email that is being sent from SAP ?

Hi,

I have a requirement where in we need to change the font for the contents in the mail being generated from SAP.

I am using the FM SO_DOCUMENT_SEND_API1 to send my mail.And the contents are just appened to an internal table as text elements.

Can we change the font in the email that is being sent from SAP to Arial 10points?