python SMTP 邮件转发

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


mailto_list = ['[email protected]]
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!"