How to get Discourse to work with Postfix

@Anv Let me be blunt: A good unwritten rule should be something like “don’t ask people to talk to you if you’re not willing to put the effort to listen to them”. By “listening”, I mean considering what they’re telling you. Participating to a forum counts as “asking people to talk to you”, I guess. Especially if you’re asking for help.

Keeping on repeating the same thing, and forcing your interlocutor to also repeat himself doesn’t lead anywhere. For anyone.

Now, why have you not run this command line already ?