python发送QQ邮箱方法

 import smtplib
 from email.mime.text import MIMEText

 mail_user = "user1@qq.com"
 mail_pwd  = "password"
 mailto_list=["user2@qq.com", "user3@qq.com"]

 def send_mail(from_address, to_address_list, mail_subject, mail_content):
     msg = MIMEText(mail_content)
     msg["Subject"] = mail_subject
     msg['From'] = from_address
     msg['To'] = ";".join(to_address_list)

     s = smtplib.SMTP("smtp.qq.com", timeout=30)#连接smtp邮件服务器,端口默认是25
     #s = smtplib.SMTP_SSL("smtp.qq.com", 465)    #连接方法一
     #s = smtplib.SMTP()    #连接方法二
     #s.connect(mail_host)
     s.login(from_address, mail_pwd)
     s.sendmail(from_address, to_address_list, msg.as_string())
     #s.quit()
     s.close()

 send_mail(mail_user, mailto_list, '群发主题', '群发内容')