Can't send mail via SMTP with fresh install (v2.1.0)

[stevenart]

I've installed a fresh v2.1.0 on a server. Everything is working find but emails are not sending.

Here is my config:

[email protected]
MAILER_NAME=Plausible
SMTP_HOST_ADDR=mail.mysmtpserver.com
SMTP_HOST_PORT=25
SMTP_USER_NAME="username"
SMTP_USER_PWD="password"

(I also tried with: MAILER_ADAPTER=Bamboo.Mua, same)

When I check logs from hosting-plausible-1 container, I see this error:

08:33:30.923 [error] Task #PID<0.4382.0> started from #PID<0.4381.0> terminating
** (ArgumentError) raise/1 and reraise/2 expect a module name, string or exception as the first argument, got: {:network_failure, ~c"mail", {:error, :nxdomain}}
    (bamboo 2.3.0) lib/bamboo/strategies/task_supervisor_strategy.ex:25: anonymous fn/3 in Bamboo.TaskSupervisorStrategy.deliver_later/3
    (elixir 1.16.0) lib/task/supervised.ex:101: Task.Supervised.invoke_mfa/2
Function: #Function<0.95237244/0 in Bamboo.TaskSupervisorStrategy.deliver_later/3>
    Args: []

Does anyone knows what's wrong?

Thanks!

[ruslandoga]

👋 @stevenart

Please share your smtp host address. Note that right now you are using mail which used to point to another container in the default docker compose config for v2.0.0 but has been removed in the one for v2.1.0.

[ruslandoga]

Does your host have IPv4 enabled? The reason for nxdomain could be:

• no network connection
• domain not resolvable (seems to be your case since there is no mail service in docker compose anymore)
• no IPv4 support

[stevenart]

Yes, I misunderstood what docker restart did. And what it did not was reload configuration file. 😓

[stevenart]

Ok, I thought "docker restart [container]" reloaded the configuration but apparently not.
I stopped the containers and did a "docker compose up" and now it works.

(Obviously not an Docker expert, sorry. 😓)

Thanks @ruslandoga for the quick response to my ignorance ! 🙏