Bamboo.Mua configuration fix for some mailing servers

[Striffly]

Past Issues Searched

• [X] I have searched open and closed issues to make sure that the bug has not yet been reported

Issue is a Bug Report

• [X] This is a bug report and not a feature request, nor asking for self-hosted support

Using official Plausible Cloud hosting or self-hosting?

Self-hosting

Describe the bug

Hello,

I recently migrated Plausible from version 2.0.0 to 2.1.0 (and now 2.1.1), and thus switched to Bamboo.Mua.

Since then, I have been encountering problems with receiving Plausible emails, which have become impossible.

To debug the issue, here are the commands I executed:

email = Bamboo.Email.new_email(from: PlausibleWeb.Email.mailer_email_from(), to: "[email protected]", subject: "test html_body", html_body: "test html_body")
Plausible.Mailer.deliver_now(email)

email = Bamboo.Email.new_email(from: PlausibleWeb.Email.mailer_email_from(), to: "[email protected]", subject: "test text_body", text_body: "test text_body")
Plausible.Mailer.deliver_now(email)

email = Bamboo.Email.new_email(from: PlausibleWeb.Email.mailer_email_from(), to: "[email protected]", subject: "test text_body html_body", text_body: "test text_body html_body", html_body: "test text_body html_body")
Plausible.Mailer.deliver_now(email)

To be sure of my results, I performed these commands each time with two different destination emails. In all cases :

• The logs returned by the console do not indicate any errors and return a table of this type :

{:ok,
 %Bamboo.Email{
   from: {"xxx", "[email protected]"},
   to: [nil: "[email protected]"],
   cc: [],
   bcc: [],
   subject: "test text_body html_body",            <==== depending of command
   html_body: "test text_body html_body",       <==== depending of command
   text_body: "test text_body html_body",        <==== depending of command
   headers: %{},
   attachments: [],
   assigns: %{},
   private: %{},
   blocked: false
 }}

• Only emails sent with both the text_body and html_body parameters (and not just one or the other) are correctly delivered. I deduce that on the Plausible side, one of the two parameters is not defined at the time of sending.

I discussed this issue on this link: https://github.com/plausible/analytics/discussions/4125#discussioncomment-9572216 However, I do not have the technical skills to correctly modify and debug the file https://github.com/plausible/analytics/blob/v2.1.0/lib/plausible_web/email.ex

As a mail server, I am using the SMTP from OVHcloud (https://www.ovhcloud.com/), which is the leading French hosting solutions provider. Therefore, a significant player in the web ecosystem.

Would it be possible to make this modification?

Expected behavior

Receive emails

Screenshots

No response

Environment

- OS: Debian 12
- Plausible environment: Docker
- Browser: Chromium
- Browser Version: 126.0.6478.61