目前，我已经为我的交易电子邮件提供商（Postmark）尝试了普通的 Django SMTP 和一些不同的基于 api 的 Django 库。
当我运行我的开发服务器时，一切都运行良好。通过 Postmark API 发送电子邮件没有任何问题。
当我使用 Zappa 部署到 AWS，访问我的网站，并执行一项应该发送电子邮件的任务（例如重置用户密码）时，页面会不断加载，直到显示Endpoint request timed out.
我尝试将 AWS Lambda 函数的超时设置为更长的持续时间，以防 Django 决定抛出错误。
这是引发的错误。请记住，此错误仅发生在生产中。我创建了一个自定义管理命令来检索此错误。
HTTPSConnectionPool(host='api.postmarkapp.com', port=443): Max retries exceeded with url: /email/batch (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f6cfbd5dd30>: Failed to establish a new connection: [Errno 110] Connection timed out',)): ConnectionError
Traceback (most recent call last):
File "/var/task/handler.py", line 509, in lambda_handler
return LambdaHandler.lambda_handler(event, context)
File "/var/task/handler.py", line 240, in lambda_handler
return handler.handler(event, context)
File "/var/task/handler.py", line 376, in handler
management.call_command(*event['manage'].split(' '))
File "/var/task/django/core/management/__init__.py", line 131, in call_command
return command.execute(*args, **defaults)
File "/var/task/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/var/task/users/management/commands/sendemail.py", line 13, in handle
fail_silently=False,
File "/var/task/django/core/mail/__init__.py", line 62, in send_mail
return mail.send()
File "/var/task/django/core/mail/message.py", line 348, in send
return self.get_connection(fail_silently).send_messages([self])
File "/var/task/postmarker/django/backend.py", line 66, in send_messages
responses = self.client.emails.send_batch(*prepared_messages, TrackOpens=self.get_option('TRACK_OPENS'))
File "/var/task/postmarker/models/emails.py", line 332, in send_batch
return self.EmailBatch(*emails).send(**extra)
File "/var/task/postmarker/models/emails.py", line 247, in send
responses = [self._manager._send_batch(*batch) for batch in chunks(emails, self.MAX_SIZE)]
File "/var/task/postmarker/models/emails.py", line 247, in <listcomp>
responses = [self._manager._send_batch(*batch) for batch in chunks(emails, self.MAX_SIZE)]
File "/var/task/postmarker/models/emails.py", line 276, in _send_batch
return self.call('POST', '/email/batch', data=emails)
File "/var/task/postmarker/models/base.py", line 72, in call
return self.client.call(*args, **kwargs)
File "/var/task/postmarker/core.py", line 106, in call
**kwargs
File "/var/task/postmarker/core.py", line 129, in _call
method, url, json=data, params=kwargs, headers=default_headers, timeout=self.timeout
File "/var/task/requests/sessions.py", line 508, in request
resp = self.send(prep, **send_kwargs)
File "/var/task/requests/sessions.py", line 618, in send
r = adapter.send(request, **kwargs)
File "/var/task/requests/adapters.py", line 508, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api.postmarkapp.com', port=443): Max retries exceeded with url: /email/batch (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f6cfbd5dd30>: Failed to establish a new connection: [Errno 110] Connection timed out',))
我已允许所有传入和传出流量进入我的 AWS 安全组，试图解决此问题。还是无济于事。
任何帮助将非常非常感谢。干杯。
