def send_plain_mail(subject, body, from_mail, to):
    import smtplib
    from email.MIMEText import MIMEText
    from email.Encoders import encode_quopri
 
    msg = MIMEText(body, 'plain', 'iso-8859-1')
 
    msg['Subject'] = subject
    msg['From'] = from_mail
    msg['To'] = to
 
    s = smtplib.SMTP()
    s.connect()
    s.sendmail(from_mail, [to], msg.as_string())
    s.close()