解决阿里云邮件发送不能使用25端口问题

# -*- coding:utf-8 -*-
import urllib, urllib2
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
# 发件人地址，通过控制台创建的发件人地址
username = 'xxx@xxx.com'
# 发件人密码，通过控制台创建的发件人密码
password = 'XXXXXXXX'
# 收件人地址列表，支持多个收件人，最多30个
rcptlist = ['to1@to.com', 'to2@to.com']
receivers = ','.join(rcptlist)
# 构建 multipart 的邮件消息
msg = MIMEMultipart('mixed')
msg['Subject'] = 'Test Email'
msg['From'] = username
msg['To'] = receivers
# 构建 multipart/alternative 的 text/plain 部分
alternative = MIMEMultipart('alternative')
textplain = MIMEText('纯文本部分', _subtype='plain', _charset='UTF-8')
alternative.attach(textplain)
# 构建 multipart/alternative 的 text/html 部分
texthtml = MIMEText('超文本部分', _subtype='html', _charset='UTF-8')
alternative.attach(texthtml)
# 将 alternative 加入 mixed 的内部
msg.attach(alternative)
# 附件类型
# xlsx 类型的附件
xlsxpart = MIMEApplication(open('测试文件1.xlsx', 'rb').read())
xlsxpart.add_header('Content-Disposition', 'attachment', filename=Header("测试文件1.xlsx","utf-8").encode())
msg.attach(xlsxpart)
# jpg 类型的附件
jpgpart = MIMEApplication(open('2.jpg', 'rb').read())
jpgpart.add_header('Content-Disposition', 'attachment', filename=Header("2.jpg","utf-8").encode())
msg.attach(jpgpart)
# mp3 类型的附件
mp3part = MIMEApplication(open('3.mp3', 'rb').read())
mp3part.add_header('Content-Disposition', 'attachment', filename=Header("3.mp3","utf-8").encode())
msg.attach(mp3part)
# 发送邮件
try:
  client = smtplib.SMTP()
  #python 2.7以上版本，若需要使用SSL，可以这样创建client
  #client = smtplib.SMTP_SSL()
  client.connect('smtpdm.aliyun.com')
  client.login(username, password)
  #发件人和认证地址必须一致
  client.sendmail(username, rcptlist, msg.as_string())
  client.quit()
  print '邮件发送成功！'
except smtplib.SMTPRecipientsRefused:
  print '邮件发送失败，收件人被拒绝'
except smtplib.SMTPAuthenticationError:
  print '邮件发送失败，认证错误'
except smtplib.SMTPSenderRefused:
  print '邮件发送失败，发件人被拒绝'
except smtplib.SMTPException,e:
  print '邮件发送失败, ', e.message

import smtplib
from email.mime.text import MIMEText

msg_from = '306334678@qq.com' # 发送方邮箱
passwd = '****' # 填入发送方邮箱的授权码(填入自己的授权码，相当于邮箱密码)
msg_to = ['****@qq.com','**@163.com','*****@163.com'] # 收件人邮箱

subject = "邮件标题" # 主题
content = "邮件内容，我是邮件内容，哈哈哈"
# 生成一个MIMEText对象（还有一些其它参数）
# _text_:邮件内容
msg = MIMEText(content)
# 放入邮件主题
msg['Subject'] = subject
# 也可以这样传参
# msg['Subject'] = Header(subject, 'utf-8')
# 放入发件人
msg['From'] = msg_from
# 放入收件人
msg['To'] = '616564099@qq.com'
# msg['To'] = '发给你的邮件啊'
try:
  # 通过ssl方式发送，服务器地址，端口
  s = smtplib.SMTP_SSL("smtp.qq.com", 465)
  # 登录到邮箱
  s.login(msg_from, passwd)
  # 发送邮件：发送方，收件方，要发送的消息
  s.sendmail(msg_from, msg_to, msg.as_string())
  print('成功')
except s.SMTPException as e:
  print(e)
finally:
  s.quit()

# EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'

EMAIL_HOST = 'smtp.qq.com' # 如果是 163 改成 smtp.163.com
EMAIL_PORT = 465  # 端口号
EMAIL_HOST_USER = '306334678@qq.com' # 发送者的邮箱帐号
EMAIL_HOST_PASSWORD = '***' #  发送者的邮箱授权
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER
#这样收到的邮件，收件人处就会这样显示
#DEFAULT_FROM_EMAIL = 'lqz<'306334678@qq.com>'

EMAIL_USE_SSL = True  #使用ssl


#EMAIL_USE_TLS = False # 使用tls
#EMAIL_USE_SSL 和 EMAIL_USE_TLS 是互斥的，即只能有一个为 True

from django.core.mail import send_mail  # 导入邮箱模块
from threading import Thread   # 导入线程模块
from threading import Thread
　　t1 = Thread(target=send_mail,args=(
　　'您的%s文章被%s评论了'%(article_name,user_name),
　　'这个人评论了：%s'%(content),
　　settings.EMAIL_HOST_USER,
　　['1670874977@qq.com'] )) 
　　t1.start()