logging.handlers.SMTPHandler引发smtplib.SMTPAuthenticationError

Question

我用Verizon和Gmail试过这个.两台服务器都拒绝认证 Gmail通过电子邮件通知我它拒绝登录尝试,因为连接没有使用"现代安全".
我想知道如何使用这个日志记录处理程序的现代安全性.

logging.handlers.SMTPHandler(mailhost=('', 25),
                             fromaddr='',
                             toaddrs='',
                             subject='',
                             credentials=('username','password'),
                             secure=())

Answer 1

对于回到此处的任何人,以下是我使用Gmail的SMTPHandler的方法:

eh = SMTPHandler(mailhost=('smtp.gmail.com', 587),
                fromaddr=from_addr,
                toaddrs=to_addrs,
                subject=subject,
                credentials=(username, password),
                secure=())

to_addrs在我的示例中,变量是一个字符串.我不确定它是否可以是数组或者应该是空格或逗号分隔的字符串.的username变量包括域,如下所示:foo@gmail.com.

大多数导游说要使用465端口,如果你好奇,这就是区别.但是,当我尝试使用端口465时,我收到了SMTP超时错误:

Traceback (most recent call last):
File "/usr/local/lib/python3.5/smtplib.py", line 386, in getreply
  line = self.file.readline(_MAXLINE + 1)
File "/usr/local/lib/python3.5/socket.py", line 571, in readinto
  return self._sock.recv_into(b)
socket.timeout: timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.5/logging/handlers.py", line 972, in emit
  smtp = smtplib.SMTP(self.mailhost, port, timeout=self.timeout)
File "/usr/local/lib/python3.5/smtplib.py", line 251, in __init__
  (code, msg) = self.connect(host, port)
File "/usr/local/lib/python3.5/smtplib.py", line 337, in connect
  (code, msg) = self.getreply()
File "/usr/local/lib/python3.5/smtplib.py", line 390, in getreply
  + str(e))
smtplib.SMTPServerDisconnected: Connection unexpectedly closed: timed out

我切换到587端口,谷歌成功通过身份验证.消息已发送.

Answer 2

Gmail问题:

• 这里没有提到.查看有关Gmail应用验证的其他答案.

Verizon问题:

• 某些邮件提交服务器可能只接受端口465上的SMTPS.请参阅端口465和587之间的区别是什么？详细说明._{Verizon邮件提交服务器smtp.verizon.net就是这样一个例子.}
• SMTPHandler默认情况下不支持SMTPS.您可以monkeypatch功能.

解:

• 这会强制任何服务器使用SMTPS.
• 更全面的修复方法是使用标志编辑类以启用SMTPS.

1. 将编辑后的emit函数从下面粘贴到相关文件中.

2. 然后设置它

   logging.handlers.SMTPHandler.emit = emit
   

 

默认的/logging/handlers.py logging.handlers.SMTPHandler.emit函数

# Class SMTPHandler...
def emit(self, record):
    """
    Emit a record.

    Format the record and send it to the specified addressees.
    """
    try:
        import smtplib
        from email.utils import formatdate
        port = self.mailport
        if not port:
            port = smtplib.SMTP_PORT
        smtp = smtplib.SMTP(self.mailhost, port, timeout=self._timeout)
        msg = self.format(record)
        msg = "From: %s\r\nTo: %s\r\nSubject: %s\r\nDate: %s\r\n\r\n%s" % (
                        self.fromaddr,
                        ",".join(self.toaddrs),
                        self.getSubject(record),
                        formatdate(), msg)
        if self.username:
            if self.secure is not None:
                smtp.ehlo()
                smtp.starttls(*self.secure)
                smtp.ehlo()
            smtp.login(self.username, self.password)
        smtp.sendmail(self.fromaddr, self.toaddrs, msg)
        smtp.quit()
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        self.handleError(record)

 

编辑的发射功能

def emit(self, record):
    """
    Overwrite the logging.handlers.SMTPHandler.emit function with SMTP_SSL.
    Emit a record.
    Format the record and send it to the specified addressees.
    """
    try:
        import smtplib
        from email.utils import formatdate
        port = self.mailport
        if not port:
            port = smtplib.SMTP_PORT
        smtp = smtplib.SMTP_SSL(self.mailhost, port, timeout=self._timeout)
        msg = self.format(record)
        msg = "From: %s\r\nTo: %s\r\nSubject: %s\r\nDate: %s\r\n\r\n%s" % (self.fromaddr, ", ".join(self.toaddrs), self.getSubject(record), formatdate(), msg)
        if self.username:
            smtp.ehlo()
            smtp.login(self.username, self.password)
        smtp.sendmail(self.fromaddr, self.toaddrs, msg)
        smtp.quit()
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        self.handleError(record)