Can a single Mail Receiver handle emails for all sites in a Discourse multisite setup?

Thank you so much @denvergeeks for sharing this with me but I have some questions:-

  1. Have you installed Postfix on your server first?
  2. According to your docs I will need to create a mail receiver container for each forum right?
  3. You map the domain to its corresponding forum using the transport map.
  4. I see that you have made some changes to the volume mounts too.