I could not find documentation about technical concept of mail within discourse. I’ve followed the simple installation instructions and configured variables using my gmx account. However, I did get any mail.
For me it’s confusing that I should configure SPF and DKIM while having credentials to login in a mail server. The former sounds like discourse is acting as MTA, the latter is acting as MUA.
Can someone please explain or heading me to appropriate documentation?
TIA
Roland