import smtplib from email.header import Header from email.mime.text import MIMEText  # 第三方 SMTP 服務 mail_host = "smtp.163.com" # SMTP服務器 mail_user = "***"   # 用戶名 mail_pass = "***"  # 授權密碼，非登錄密碼  sender = ***@163.com' # 發件人郵箱(最好寫全, 不然會失敗) receivers = [***@qq.com'] # 接收郵件，可設置為你的QQ郵箱或者其他郵箱  content = '我用Python' def sendEmail():   message = MIMEText(content, 'plain', 'utf-8') # 內容, 格式, 編碼  message['From'] = "{}".format(sender)  message['To'] = ",".join(receivers)  message['Subject'] = title   try:  smtpObj = smtplib.SMTP_SSL(mail_host, 465) # 啟用SSL發信, 端口一般是465  smtpObj.login(mail_user, mail_pass) # 登錄驗證  smtpObj.sendmail(sender, receivers, message.as_string()) # 發送  print("mail has been send successfully.")  except smtplib.SMTPException as e:  print(e)  def send_email2(SMTP_host, from_account, from_passwd, to_account, subject, content):  email_client = smtplib.SMTP(SMTP_host)  email_client.login(from_account, from_passwd)  # create msg  msg = MIMEText(content, 'plain', 'utf-8')  msg['Subject'] = Header(subject, 'utf-8') # subject  msg['From'] = from_account  msg['To'] = to_account  email_client.sendmail(from_account, to_account, msg.as_string())   email_client.quit()  if __name__ == '__main__':  sendEmail()  # receiver = '***'  # send_email2(mail_host, mail_user, mail_pass, receiver, title, content)