Maildir

Letterbox is a simple Go program that accepts SMTP connections and delivers mail to a per-user maildir directory. I use it to gather reports from various services on my LAN without needing to setup postfix or some other more complex MTA.

Usage of letterbox:
  -config string
        Path to configutation file (default "letterbox.toml")
  -host string
        Host IP or name to bind to
  -maildirs string
        Path to the top level of the user Maildirs (default "/var/spool/maildirs")
  -port int
        Port to bind to (default 25)

The configuration file is written using TOML . You must specify at least one host/network and one email otherwise delivery will fail. For example: