python邮件发送-smtplib

import smtplib
from email.mime.text import MIMEText
from email.header import Header

# 第三方 SMTP 服务
mailserver =  "***"  # 设置服务器
username_send = "***"  # 用户名
password = "***"  # 口令

sender="***"  #发件人
recipients = [‘***‘]  # 接收邮件，可设置为你的QQ邮箱或者其他邮箱

message = MIMEText(‘Python 邮件发送测试...‘, ‘plain‘, ‘utf-8‘)
message[‘From‘] = Header("菜鸟教程", ‘utf-8‘)
message[‘To‘] = Header("测试", ‘utf-8‘)

subject = ‘Python SMTP 邮件测试‘
message[‘Subject‘] = Header(subject, ‘utf-8‘)

try:
    smtpObj = smtplib.SMTP()
    smtpObj.connect(mailserver, 25)  # 25 为 SMTP 端口号
    smtpObj.login(username_send, password)
    smtpObj.sendmail(sender, recipients, message.as_string())
    print("邮件发送成功")
except smtplib.SMTPException:
    print("Error: 无法发送邮件")