在App Engine开发服务器上通过SMTP服务器发送电子邮件时出错

问题描述：

我正在尝试使用此示例代码发送电子邮件和这些命令行选项：

I am trying to send Email using this sample code and these command-line options:

dev_appserver.py --smtp_host=smtp.gmail.com --smtp_port=25 --smtp_user=xxx@gmail.com--smtp_password=k1tt3ns myapp

但是，我收到以下错误我的应用程序尝试发送电子邮件（在开发服务器上）：

However, I receive the following error when my app tries to send e-mail (on the development server):

Traceback (most recent call last):
  File "C:\Program Files\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 500, in __call__
    handler.post(*groups)
  File "C:\Documents and Settings\desk\Desktop\apps\temp\main.py", line 139, in post
    """)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail.py", line 205, in send_mail
    message.send(make_sync_call)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail.py", line 474, in send
    make_sync_call('mail', self._API_CALL, message, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 68, in MakeSyncCall
    apiproxy.MakeSyncCall(service, call, request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 240, in MakeSyncCall
    stub.MakeSyncCall(service, call, request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub.py", line 80, in MakeSyncCall
    method(request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail_stub.py", line 203, in _Send
    self._SendSMTP(mime_message, smtp_lib)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail_stub.py", line 133, in _SendSMTP
    smtp.login(self._smtp_user, self._smtp_password)
  File "C:\Python26\lib\smtplib.py", line 552, in login
    raise SMTPException("SMTP AUTH extension not supported by server.")
SMTPException: SMTP AUTH extension not supported by server.

答

dev_appserver.py不支持需要的TLS通过Gmail。您可以通过在api / mail_stub.py中添加几行来启用它：

dev_appserver.py doesn't support TLS which is required by Gmail. You can enable it by adding a few lines in api/mail_stub.py:

# After smtp.connect(self._smtp_host, self._smtp_port)
smtp.ehlo()
smtp.starttls()
smtp.ehlo()

注意！这是一个快速而肮脏的解决方案。您应该添加一些标志来告诉它是否要使用TLS，因为并不总是需要。

Note! That's the quick and dirty solution. You should add some kind of flag to tell it whether you want to use TLS or not, as it is not always desired.

在App Engine开发服务器上通过SMTP服务器发送电子邮件时出错

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