Can't Send Emails

Installation
14

Hi, I’ve upgraded my local instance of Discourse to 2.9.0.beta4 and even after adding DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: “none” in my containers/app.yml file (and rebuilding the app), I still keep getting such errors:

  Rendered layouts/email_template.html.erb (Duration: 0.2ms | Allocations: 34)
Delivered mail 31c5b9eb-1077-4155-b040-314c4a8566cb@taverne.colorfulminis.com (11.3ms)
Job exception: SSL_connect returned=1 errno=0 state=error: certificate verify failed (self signed certificate)

This obviously makes my Discourse instance unable to send emails anymore.
Is there any known issue about this?

FYI: I’m running a preprod instance with 2.8.0.beta9 and exactly the same config, and emails get sent like a charm.

Thanks for your help.

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