使用 django-ses 时出现“[Errno 8] nodename 或 servname 已提供，或未知”

Question

我正在尝试将 django-ses 插入到我的项目中。我已按照本教程中的说明进行操作： https://kholinlabs.com/the-easiest-way-to-send-emails-with-django

虽然我相信我已经密切关注了这些，但在发送测试电子邮件时我收到了这个错误：

File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 745, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

我已成功注册 SES 并验证了我用来发送的电子邮件。

从 python 控制台或应用程序发送时发生错误。

这些是我的相关设置：

EMAIL_BACKEND = 'django_ses.SESBackend'
AWS_SES_REGION_NAME = 'eu-west-2'
AWS_SES_REGION_ENDPOINT = 'email.eu-west-2.amazonaws.com'
AWS_SES_ACCESS_KEY_ID = '{secret key}'
AWS_SES_SECRET_ACCESS_KEY = '{secret access key}'
AWS_SES_AUTO_THROTTLE = 0.5

我该如何解决这个问题？

用于发送电子邮件的命令

from django.core.mail import send_mail

send_mail(
    'Subject here',
    'Here is the message.',
    'from@example.com',
    ['to@example.com'],
    fail_silently=False,
)

完整堆栈跟踪

Traceback (most recent call last):
  File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1758, in <module>
    main()
  File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1752, in main
    globals = debugger.run(setup['file'], None, None, is_module)
  File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1147, in run
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "/Applications/PyCharm.app/Contents/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "/Users/user/Desktop/app/manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/management/base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "/Users/user/Desktop/app/letters/management/commands/test_email.py", line 19, in handle
    fail_silently=False,
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/mail/__init__.py", line 60, in send_mail
    return mail.send()
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django/core/mail/message.py", line 291, in send
    return self.get_connection(fail_silently).send_messages([self])
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django_ses/__init__.py", line 157, in send_messages
    rate_limit = self.get_rate_limit()
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/django_ses/__init__.py", line 247, in get_rate_limit
    quota_dict = self.connection.get_send_quota()
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/ses/connection.py", line 341, in get_send_quota
    return self._make_request('GetSendQuota')
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/ses/connection.py", line 102, in _make_request
    data=urllib.parse.urlencode(params)
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/connection.py", line 1071, in make_request
    retry_handler=retry_handler)
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/connection.py", line 1030, in _mexe
    raise ex
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/connection.py", line 943, in _mexe
    request.body, request.headers)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1026, in _send_output
    self.send(msg)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 964, in send
    self.connect()
  File "/Users/user/python-venvs/app/lib/python3.6/site-packages/boto/https_connection.py", line 119, in connect
    sock = socket.create_connection((self.host, self.port), self.timeout)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 704, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 745, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

Process finished with exit code 1

Answer 1

socket.gaierror: [Errno 8] nodename nor servname provided, or not known

这是因为您的应用程序无法访问您的邮件服务器，有一些原因可能会导致此问题，如未正确配置 SES、错误的电子邮件服务器端点、错误的凭据。

所以你可以按照下面的步骤来弄清楚。

配置您的 SES（验证您的 emails/domains）和 get SMTP credentials。所以在这一步你有：

Server Name: email-smtp.<region>.amazonaws.com (e.g: email-smtp.us-west-2.amazonaws.com)
Authentication: Your SMTP credentials.

通过 send testing email 验证您的 SES 配置，按照以下步骤验证您的 SES 配置是否正确。
为您的应用程序设置 SES。例如：

AWS_SES_REGION_NAME = 'us-west-2'
AWS_SES_REGION_ENDPOINT = 'email-smtp.us-west-2.amazonaws.com'
AWS_SES_ACCESS_KEY_ID = '{secret key}'
AWS_SES_SECRET_ACCESS_KEY = '{secret access key}'

在您的应用程序上测试发送电子邮件

当您按照上述步骤操作但仍无法发送电子邮件时，您可能需要仔细检查一些事项：

您的 AWS_SES_ACCESS_KEY_ID 和 AWS_SES_SECRET_ACCESS_KEY 应该从您用于执行步骤 2 的 IAM 用户生成。
AWS_SES_REGION_ENDPOINT 是这 3 个可用端点之一，与您选择设置 SES 的区域匹配：

US East (N. Virginia): email-smtp.us-east-1.amazonaws.com

US West (Oregon): email-smtp.us-west-2.amazonaws.com

EU (Ireland): email-smtp.eu-west-1.amazonaws.com

希望对您有所帮助！

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