def prepare_email_content(email_address, subject):
#construct Receiver, Content and Attachment Class
r = Receiver()
c = Content()
a = Attachment()
msg = EmailMessage()
msg['Subject'] = subject
msg['To'] = ', '.join(r.get_receiver())
msg['From'] = email_address
msg.set_content(c.get_content())
set_attachment(msg, a.get_attachments())
return msg
