Exim Notes

Things I need to figure out

• The difference between MTA and MUA?
  A lot of these things are covered in this Wikipedia article.

  MTA

  Message Transfer Agent. See Wikipedia.

  MUA

  Mail User Agent. See Wikipedia.
  It’s just an email client.

  MDA

  Message Delivery Agent. (Wikipedia)

• Virtual domains and users?
• Blocking specific users
• DKIM and that kind of thing
• TLS certificates? See effp address resolution and Use of TLS
• Running as not-root (see Exim’s security considerations)
• Pipe transport (maybe over Unix domain sockets) to send things to Clojure. See The pipe transport.
• Procmail as a separate message delivery agent (MDA)? I should probably use Dovecot instead.
• SpamAssassin
• Blocking IP ranges?

Virtual Domains or Users

Maybe see here.