What does DISCOURSE_SMTP_DOMAIN mean?

Installation
1

While already having DISCOURSE_SMTP_ADDRESS, what does the DISCOURSE_SMTP_DOMAIN setting in containers/app.yml do?

It’s not that desktop clients usually ask for “address” and “domain” separately, so I got confused.

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2

I have the same question. I searched for an answer and I found this topic.

More specifically I wonder whether here we should put the same subdomain the Discourse instance has (discourse.example.com) or the domain (example.com). And whether this is something related to the SMTP configuration at all.

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3

It is passed directly to action_mailer

Actions_Mailer’s Docs designate it as a part of SMTP conversation.

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4

Is there a reason why this line in app.yml

DISCOURSE_SMTP_DOMAIN: discourse.example.com # (required by some providers)

isn’t asked during ./discourse-setup and it isn’t commented either, introducing a false value in the configuration?

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5

In case it helps future readers…

Replying to myself :sweat_smile: based on Emails have stopped sending - end of file reached - #25 by Falco, you need to add your mail domain i.e. mail.example.com.

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