No credentials sent to AWS SES

[mister-px]

I'm having the following problem: no mail gets delivered through Amazon SES. I'm not using the "mail" service in docker-compose.yml, and I correctly configured the env variables, as i can read them correctly with Application.get_env(:plausible, Plausible.Mailer). After sending the test email with Plausible.Mailer.deliver_now(email), i receive this:

15:59:49.064 [warning] Description: 'Server authenticity is not verified since certificate path validation is not enabled'
     Reason: 'The option {verify, verify_peer} and one of the options \'cacertfile\' or \'cacerts\' are required to enable this.'

{:error,
 {:permanent_failure, 'email-smtp.eu-central-1.amazonaws.com',
  "530 Authentication required\r\n"}}

Reading some other issues and answers, it seems that the warning is not a problem... but the 530 is. Also, in the AWS console the credentials show up as "Never used", so i guess they are not sent while opening the connection with the SMTP.

Any advice?

[brendanknights]

I have the same issue.

I investigated the Bamboo.SesAdaptor path, but couldn't figure out how to make it work.

I don't believe it ships with the default Bamboo mailer, maybe it should if we can't make SSL through AWS SMTP interface work?

10:50:06.232 request_id=F7bG50NcjTNC_dYAAAvR [warning] Description: 'Server authenticity is not verified since certificate path validation is not enabled' Reason: 'The option {verify, verify_peer} and one of the options \'cacertfile\' or \'cacerts\' are required to enable this.'

[wheeleran]

same. still.

[ruslandoga]

#4149 (comment) describes how to make Plausible v2.1.1 work with AWS SES.

Make sure you use the new SMTP adapter:
_{plausible-conf.env}

MAILER_ADAPTER=Bamboo.Mua

[wheeleran]

hi @ruslandoga. i really appreciate you're trying to help, but that thread doesn't help dummies like me.

[ruslandoga]

If you are having problems with the proposed solution, please start a discussion and someone might try to help with your Synology setup :) Maybe https://chatgpt.com/share/eecb2228-f959-4072-ac27-a758fb490102 would help.

[wheeleran]

@ruslandoga well this really does look like the right thread. thanks for the chatgpt thread. i think i've got everything set up now as per the other thread; .exs file, new volume, extra config path - but still no email sending. maybe it IS an issue specific to Amazon SES. @mister-px, did you get it to work? The error i'm getting is: [warning] Description: ~c"Failed to assert middlebox server message" and Reason: [missing: {:change_cipher_spec, 1}]. Maybe this is specific to Synology and you're right i should open a specific thread topic for that, but it looks like an Amazon issue. Any advice?

[ruslandoga]

Please change your extra config to this:

import Config

config :plausible, Plausible.Mailer,
  ssl: [middlebox_comp_mode: false]

[wheeleran]

YES!!! that did it, can't thank you enough!

[dhairyathedev]

Please change your extra config to this:

import Config

config :plausible, Plausible.Mailer,
  ssl: [middlebox_comp_mode: false]

@ruslandoga Where can I find this config file?

[ruslandoga]

👋 @dhairyathedev

It's a file you need to create yourself, mount it into the Plausible container, and then point to it with EXTRA_CONFIG_PATH env var: https://github.com/plausible/community-edition/wiki/Configuration#extra_config_path_

[dhairyathedev]

👋 @dhairyathedev

It's a file you need to create yourself, mount it into the Plausible container, and then point to it with EXTRA_CONFIG_PATH env var: https://github.com/plausible/community-edition/wiki/Configuration#extra_config_path_

Got it!! It works now, Thank you for the prompt reply. @ruslandoga