╰─[:)] % sudo /etc/init.d/exim4 restart
Stopping MTA for restart: exim4_listener.
Restarting MTA: exim4.
╭─[~]─[tom@pluto]─[0]─[8907]
╰─[:)] % sudo exim -brw fp42@restaurant.hitch.fict.example
  sender: fp42@restaurant.hitch.fict.example
    from: fp42@restaurant.hitch.fict.example
      to: fp42@restaurant.hitch.fict.example
      cc: fp42@restaurant.hitch.fict.example
     bcc: fp42@restaurant.hitch.fict.example
reply-to: fp42@restaurant.hitch.fict.example
env-from: fp42@restaurant.hitch.fict.example
  env-to: fp42@restaurant.hitch.fict.example
╭─[~]─[tom@pluto]─[0]─[8908]
╰─[:)] % sudo cat /etc/exim4/conf.d/rewrite/32_exim4-config_tomRewrite
*@*.hitch.fict.example  $1@hitch.fict.example