Can't send email

0nano

Hi there,

I want to connect my pod to a starlwart mail server but it's not working, I've tried several things but it's not working, can you help me?

I know my mail server is running and working fine, I use it for uptime kuma and nextcloud.
And just to make sure I haven't made a mistake with the network configuration, I checked in the funkwhale api container if I can connect to my mail server and it worked.

[upl-image-preview url=https://forum.funkwhale.audio/assets/files/2024-06-17/1718630545-861693-capture-decran-du-2024-06-17-15-21-59.png]

2024-06-17 13:19:39,312 django.request ERROR Internal Server Error: /api/v1/auth/registration/ Traceback (most recent call last): File "/venv/lib/python3.10/site-packages/asgiref/sync.py", line 534, in thread_handler raise exc_info[1] File "/venv/lib/python3.10/site-packages/django/core/handlers/exception.py", line 38, in inner response = await get_response(request) File "/venv/lib/python3.10/site-packages/django/core/handlers/base.py", line 233, in _get_response_async response = await wrapped_callback(request, *callback_args, **callback_kwargs) File "/venv/lib/python3.10/site-packages/asgiref/sync.py", line 479, in __call__ ret: _R = await loop.run_in_executor( File "/venv/lib/python3.10/site-packages/asgiref/current_thread_executor.py", line 40, in run result = self.fn(*self.args, **self.kwargs) File "/venv/lib/python3.10/site-packages/asgiref/sync.py", line 538, in thread_handler return func(*args, **kwargs) File "/usr/lib/python3.10/contextlib.py", line 79, in inner return func(*args, **kwds) File "/venv/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view return view_func(*args, **kwargs) File "/venv/lib/python3.10/site-packages/django/views/generic/base.py", line 70, in view return self.dispatch(request, *args, **kwargs) File "/venv/lib/python3.10/site-packages/django/utils/decorators.py", line 43, in _wrapper return bound_method(*args, **kwargs) File "/venv/lib/python3.10/site-packages/django/views/decorators/debug.py", line 89, in sensitive_post_parameters_wrapper return view(request, *args, **kwargs) File "/venv/lib/python3.10/site-packages/dj_rest_auth/registration/views.py", line 47, in dispatch return super().dispatch(*args, **kwargs) File "/venv/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch response = self.handle_exception(exc) File "/venv/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception self.raise_uncaught_exception(exc) File "/venv/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception raise exc File "/venv/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch response = handler(request, *args, **kwargs) File "/venv/lib/python3.10/site-packages/drf_spectacular/drainage.py", line 193, in wrapped_method return method(self, request, *args, **kwargs) File "/venv/lib/python3.10/site-packages/rest_framework/generics.py", line 190, in post return self.create(request, *args, **kwargs) File "/app/funkwhale_api/users/views.py", line 31, in create return super().create(request, *args, **kwargs) File "/venv/lib/python3.10/site-packages/dj_rest_auth/registration/views.py", line 69, in create user = self.perform_create(serializer) File "/app/funkwhale_api/users/views.py", line 37, in perform_create user = super().perform_create(serializer) File "/venv/lib/python3.10/site-packages/dj_rest_auth/registration/views.py", line 95, in perform_create complete_signup( File "/venv/lib/python3.10/site-packages/allauth/account/utils.py", line 188, in complete_signup return perform_login(request, user, File "/venv/lib/python3.10/site-packages/allauth/account/utils.py", line 152, in perform_login send_email_confirmation(request, user, signup=signup) File "/venv/lib/python3.10/site-packages/allauth/account/utils.py", line 322, in send_email_confirmation email_address.send_confirmation(request, File "/venv/lib/python3.10/site-packages/allauth/account/models.py", line 58, in send_confirmation confirmation.send(request, signup=signup) File "/venv/lib/python3.10/site-packages/allauth/account/models.py", line 163, in send get_adapter(request).send_confirmation_mail(request, self, signup) File "/venv/lib/python3.10/site-packages/allauth/account/adapter.py", line 453, in send_confirmation_mail self.send_mail(email_template, File "/app/funkwhale_api/users/adapters.py", line 24, in send_mail return super().send_mail(template_prefix, email, context) File "/venv/lib/python3.10/site-packages/allauth/account/adapter.py", line 137, in send_mail msg.send() File "/venv/lib/python3.10/site-packages/django/core/mail/message.py", line 284, in send return self.get_connection(fail_silently).send_messages([self]) File "/venv/lib/python3.10/site-packages/django/core/mail/backends/smtp.py", line 102, in send_messages new_conn_created = self.open() File "/venv/lib/python3.10/site-packages/django/core/mail/backends/smtp.py", line 62, in open self.connection = self.connection_class(self.host, self.port, **connection_params) File "/usr/lib/python3.10/smtplib.py", line 1050, in __init__ SMTP.__init__(self, host, port, local_hostname, timeout, File "/usr/lib/python3.10/smtplib.py", line 255, in __init__ (code, msg) = self.connect(host, port) File "/usr/lib/python3.10/smtplib.py", line 341, in connect self.sock = self._get_socket(host, port, self.timeout) File "/usr/lib/python3.10/smtplib.py", line 1056, in _get_socket new_socket = super()._get_socket(host, port, timeout) File "/usr/lib/python3.10/smtplib.py", line 312, in _get_socket return socket.create_connection((host, port), timeout, File "/usr/lib/python3.10/socket.py", line 845, in create_connection raise err File "/usr/lib/python3.10/socket.py", line 833, in create_connection sock.connect(sa) TimeoutError: [Errno 110] Operation timed out

petitminion

time out probably comes from a firewall, or some services ignoring the request. It's hard to help you without knowing more about your infra and seing infra logs

0nano

Stalwart mail server and Funkwhale are in docker containers, and I have everything configured to work well between docker and the firewall, which is ufw with ufw-docker. As I said, my configuration is the same for uptime kuma and stalwart, and it's working fine.

The stalwart logs show the IP (172.29.0.1) of the funkwhale api container, but it doesn't do anything.

Stalwart logs :
2024-06-26T15:19:44.351075Z DEBUG common::listener::listen: Dropping connection from blocked IP. context="listener" event="blocked" instance="submissions" protocol=Smtp remote.ip="194.169.175.20" remote.port=42222 2024-06-26T15:19:52.220100Z DEBUG common::listener::listen: Dropping connection from blocked IP. context="listener" event="blocked" instance="submissions" protocol=Smtp remote.ip="194.169.175.66" remote.port=32924 2024-06-26T15:20:17.916216Z DEBUG session{instance="http" protocol=Http remote.ip="172.29.0.1" remote.port=59626}: jmap::api::http: event="request" uri="/" 2024-06-26T15:20:18.512443Z DEBUG common::listener::listen: Dropping connection from blocked IP. context="listener" event="blocked" instance="submissions" protocol=Smtp remote.ip="194.169.175.20" remote.port=60132 2024-06-26T15:20:34.255916Z DEBUG common::listener::listen: Dropping connection from blocked IP. context="listener" event="blocked" instance="submissions" protocol=Smtp remote.ip="194.169.175.66" remote.port=33782 2024-06-26T15:20:54.726466Z DEBUG common::listener::listen: Dropping connection from blocked IP. context="listener" event="blocked" instance="submissions" protocol=Smtp remote.ip="194.169.175.20" remote.port=58068

petitminion

It says the IP is blocked, so the problem probably comes from the mail server and not from Funkwhale

0nano

I checked to see if it could be this, but even by forcing my mail server to allow the IP of the funkwhale api, it still does not work.
Is there a test function for the smtp connection to make it easier to test and get a more readable log?

petitminion

I'm not aware of any test function, what I see from the logs is that Funkwhale tries to open a SMTP connection and time out because the connection is refused.

Maybe the problem comes from our ngnix config but I doubt it since we don't have any other reports like this one

0nano

I've checked with tcpdump and found that the Funkwhale API is not sending packets to my mail server. I will see if I can find more information on why.

0nano

Ok, I managed to connect funkwhale to my mail server. I need to use the container name to use the Docker DNS to make the connection work. Before, I only tested with the container ip, I think the parsing might not work well with private IP in this case.