Python logging.handlers.SMTPHandler引发smtplib.SMTPAuthenticationError

我用Verizon和Gmail试过了。两台服务器都拒绝了身份验证。Gmail给我发电子邮件说它拒绝了登录尝试，因为连接没有使用“现代安全性”。
我想知道如何使用这个日志处理程序的现代安全性

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

Gmail问题：

• 这里没有提到。查看关于Gmail应用程序认证的其他答案

Verizon问题：

• 某些邮件提交服务器可能只接受端口465上的SMTPS。有关详细说明，请参阅。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。您可以对该功能进行monkeypatch

解决方案：

• 这将强制任何服务器使用SMTPS
• 更彻底的修复方法是使用一个标志来编辑类，以启用SMTPS

从下面将已编辑的发射函数粘贴到相关文件中

那就定下来

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)

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)

编辑的发射功能

# 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)

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)

---

对于回到这里的任何人，以下是我如何让SMTPHandler与Gmail一起工作的：

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

在我的示例中，

to_addrs

变量是一个字符串。我不确定它是否可以是一个数组，或者应该是一个空格或逗号分隔的字符串。

username

变量包括域，如下所示：

foo@gmail.com

大多数导游都说使用465端口，如果你好奇的话，这里有一些建议。但是，当我尝试使用端口465时，出现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，谷歌成功地进行了身份验证。邮件已发送。

我需要添加eh。_timeout=30以延长默认超时5秒，这样才能可靠工作。端口465（SSL）的问题是始终使用

smtplib.SMTP（）

可以选择使用StartTLS，而不是

smtplib.SMTP\u SSL（）

。