python2.7发送邮件

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import smtplib
from email.MIMEText import MIMEText
from email.Utils import formatdate
from email.Header import Header
import sys

#发送邮件的相关信息，根据你实际情况填写
smtpHost = 'smtp.qq.com'
smtpPort = '25'
sslPort  = '465'
fromMail = 'XX@qq.com'
toMail   = 'XX@yy.com'
username = 'XX@qq.com'
password = ''
#解决中文问题
reload(sys)
sys.setdefaultencoding('utf8')

#邮件标题和内容
subject  = u'[Notice]人生苦短,快用python'
body     = u'python测试'

#初始化邮件
encoding = 'utf-8'
mail = MIMEText(body.encode(encoding),'plain',encoding)
mail['Subject'] = Header(subject,encoding)
mail['From'] = fromMail
mail['To'] = toMail
mail['Date'] = formatdate()

try:
#连接smtp服务器，明文/SSL/TLS三种方式，根据你使用的SMTP支持情况选择一种
#普通方式，通信过程不加密
#smtp = smtplib.SMTP(smtpHost,smtpPort)
#smtp.ehlo()
#smtp.login(username,password)

#tls加密方式，通信过程加密，邮件数据安全，使用正常的smtp端口
#smtp = smtplib.SMTP(smtpHost,smtpPort)
#smtp.ehlo()
#smtp.starttls()
#smtp.ehlo()
#smtp.login(username,password)

#纯粹的ssl加密方式，通信过程加密，邮件数据安全
smtp = smtplib.SMTP_SSL(smtpHost,sslPort)
smtp.ehlo()
smtp.login(username,password)

#发送邮件
smtp.sendmail(fromMail,toMail,mail.as_string())
smtp.close()
print 'OK'
except Exception:
print 'Error: unable to send email'