代碼如下：

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

# 第三方 SMTP 服務
mail_host = "smtp.exmail.qq.com"
mail_port = 465  # 也可能是25，看情況。SMTPS的話一般是465
mail_user = "[email protected]"
mail_pass = "aaa"   # 密碼或郵箱授權碼

mail_sender 
 
= ‘[email protected]‘
mail_receivers = [‘[email protected]‘]

subject = ‘郵件主題‘
message = MIMEText(‘郵件內容‘, ‘plain‘, ‘utf-8‘)  # plain表示郵件類型
message[‘From‘] = formataddr(["發件人別稱", "[email protected]"])
message[‘To‘] = formataddr(["收件人別稱", "[email protected]"])
message[‘
 
Subject‘] = Header(subject, ‘utf-8‘)


def sendmail(host, port, sender, password, recvivers, meassage):
    try:
        mail_obj = smtplib.SMTP_SSL()  # 郵件服務器使用 SMTPS 的時候用 SMTP_SSL
        mail_obj.connect(host, port)
        mail_obj.login(sender, password)
        mail_obj.sendmail(sender, recvivers, meassage.as_string())
        mail_obj.quit()
        
 
print("Send sucessful")
        return True
    except Exception as e:
        err = "Send Failed for reason:\n {}".format(e)
        print(err)
        return False


sendmail(mail_host, mail_port, mail_sender, mail_pass, mail_receivers, message)

python3使用stmplib發送郵件