Hello!

I have procrastinated configuring the e-mail server for my instance. I am looking into it and it is not entirely clear to me how I should go about it.

I see that some docker-compose files have the following block added:

 postfix:
     image: mwader/postfix-relay
     environment:
       - POSTFIX_myhostname=${domain}
     restart: "always"

But I don’t understand whether this is supposed to work out-of-the box (which it did not for me when I tried), or if I need to set up the postfix server as one usually would and the postfix-relay somehow makes the connection between docker container and the already configured server. Is there a guide for complete beginners? I could not find one in the lemmy docs and I have never configured an e-mail server before. I am reading through the postfix documentation and already got some basics but there is a lot, and I am not sure that I am moving efficiently towards the end goal 😅