exim.conf

# brew install exim
# mkdir /usr/local/var/mail
# echo "*: jhoffmann" > /usr/local/etc/aliases
# chmod 644 /usr/local/etc/exim.conf
# chown root /usr/local/etc/exim.conf
# echo "Subject: DO NOT DELETE" | exim foo@bar.com
#
# mutt -F ~/Mail/common.rc -f /usr/local/var/mail/jhoffmann

domainlist local_domains = @
domainlist relay_to_domains =
hostlist   relay_from_hosts = 127.0.0.1

acl_smtp_rcpt = acl_check_rcpt
acl_smtp_data = acl_check_data

daemon_smtp_ports = 10026

host_lookup = *

rfc1413_hosts = *
rfc1413_query_timeout = 5s

ignore_bounce_errors_after = 2d

timeout_frozen_after = 7d

begin acl
    acl_check_rcpt:
      accept  hosts = :
              control = dkim_disable_verify

      deny    message       = Restricted characters in address
              domains       = +local_domains
              local_parts   = ^[.] : ^.*[@%!/|]

      deny    message       = Restricted characters in address
              domains       = !+local_domains
              local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./

      accept  local_parts   = postmaster
              domains       = +local_domains

# Disable this or you get: H=localhost [127.0.0.1] sender verify fail for <jhoffmann@sugarcrm.com>: Unknown user
#      require verify        = sender

      accept  hosts         = +relay_from_hosts
              control       = submission
              control       = dkim_disable_verify

      accept  authenticated = *
              control       = submission
              control       = dkim_disable_verify

      require message = relay not permitted
              domains = +local_domains : +relay_to_domains

      require verify = recipient
      accept

    acl_check_data:
        accept

begin routers
    catch_all:
       debug_print = "R: catch_all for $local_part@$domain"
       driver = redirect
       data = ${lookup{*}lsearch{/usr/local/etc/aliases}}

    system_aliases:
      driver = redirect
      allow_fail
      allow_defer
      data = ${lookup{$local_part}lsearch{/usr/local/etc/aliases}}
      file_transport = address_file
      pipe_transport = address_pipe

    userforward:
      driver = redirect
      check_local_user
      file = $home/.forward
      no_verify
      no_expn
      check_ancestor
      file_transport = address_file
      pipe_transport = address_pipe
      reply_transport = address_reply

    localuser:
      driver = accept
      check_local_user
      transport = local_delivery
      cannot_route_message = Unknown user

begin transports
    remote_smtp:
      driver = smtp

    local_delivery:
      driver = appendfile
      file = /usr/local/var/mail/$local_part
      delivery_date_add
      envelope_to_add
      return_path_add

    address_pipe:
      driver = pipe
      return_output

    address_file:
      driver = appendfile
      delivery_date_add
      envelope_to_add
      return_path_add

    address_reply:
      driver = autoreply

begin retry
    *                      *           F,2h,15m; G,16h,1h,1.5; F,4d,6h

begin rewrite

begin authenticators