MFMailComposeViewController以编程方式调用“发送”按钮

I am trying to send an automatic email with an UIImage as an attachment when user presses 'Send Photo' button. Is there any way that we can programmatically call the "Send" button in the MFMailComposeViewController. If not could you please suggest me some other method of doing this. Any help will be appreciated.I am trying to send an automatic email with an