sender = "from@gmail.com"
to_address = ["to@gmail.com"]
subject = "Test subject"
body = "Test body"
title = "title"

attach_files = ['c:\dummy.pdf']

host = 'localhost.com'
user = 'user@mail.com'
password = 'password'

msg_root = MIMEMultipart('related')
addr = '{} <{}>'.format(title, sender)
name, address = parseaddr(addr)
msg_root['From'] = formataddr((
    Header(name, 'utf-8').encode(),
    addr.encode('utf-8') if isinstance(addr, unicode) else addr))

msg_root['To'] = ','.join(to_address)
msg_root['Subject'] = Header(subject, 'utf-8')
msg_text = MIMEText(body, 'html', 'utf-8')
msg_root.attach(msg_text)

for index, attach_file in enumerate(attach_files, start=1):
    with open(attach_file, 'rb') as attach_obj:
        attach = MIMEApplication(attach_obj.read(),
                                 _subtype="pdf",
                                 name=os.path.basename(attach_file))
        attach.add_header('Content-Disposition', 'attachment',
                          filename=os.path.basename(attach_file))
        msg_root.attach(attach)

connection = smtplib.SMTP_SSL(host=host, timeout=5)
try:
    connection.login(user=user, password=password)
    connection.sendmail(user, all_address, msg_root.as_string())
finally:
    connection.quit()