python SMTP 邮件转发

#! /usr/bin/env python
# -*- coding: UTF-8 -*-
import smtplib
from email.mime.text import MIMEText

mailto_list = ['xxxxxx@xx.com]
mail_host = "smtp.163.com"
mail_user = "xxxxxx"
mail_pass = "xxxxxxxxxx"
mail_postfix = "163.com"
def send_mail(mailto_list, sub, content):
me = "hello"+"<"+mail_user+"@"+mail_postfix+">"
msg = MIMEText(content, _subtype='plain')
msg['Subject'] = sub
msg['From'] = me
try:
for mail in mailto_list:
msg['To'] = mail
server = smtplib.SMTP()
server.connect(mail_host)
server.login(mail_user, mail_pass)
server.sendmail(me, mail, msg.as_string())
server.close()
del msg['To']
return True
except Exception, e:
print str(e)
return False

if send_mail(mailto_list, "HELLO", "GOOD MORNING"):
print "done!"
else:
print "failed!"