python send mail

# -*- coding: UTF-8 -*-'''发送txt文本邮件小五义：http://www.cnblogs.com/xiaowuyi'''import smtplibfrom email.mime.text import MIMETextmailto_list = ['[e-mail]']mail_host = "smtp.XXX.com"  # 设置服务器mail_user = "XXXX"  # 用户名mail_pass = "XXXXXX"  # 口令mail_postfix = "XXX.com"  # 发件箱的后缀def send_mail(to_list, sub, content):    me = "hello" + "<" + mail_user + "@" + mail_postfix + ">"    msg = MIMEText(content, _subtype='plain', _charset='gb2312')    msg['Subject'] = sub    msg['From'] = me    msg['To'] = ";".join(to_list)    try:        server = smtplib.SMTP()        server.connect(mail_host)        server.login(mail_user, mail_pass)        server.sendmail(me, to_list, msg.as_string())        server.close()        return True    except   :        print ("sdf")        return Falseif __name__ == '__main__':    if send_mail(mailto_list, "hello", "hello world！"):        print  ("fsdf")    else:        print  ("fds")