I want to set up an exim listening process to capture emails after another host has transmogrified them in some way. Our product is an "email branding" server, and I'm setting up an automated test harness to check that our transmogrifier performs the correct transformations.
The intention is to have a test "master" that both sends input emails to the transmogrifier, and accepts the latter's output to compare against the expected output. I've already set the transmogrifier to return its output to the test master via port 7357, and now I need to accept them on that port. That's simple enough with daemon_smtp_port, but I also need to convince exim (on the test master) not to expect any root privileges. Fine, I could use exim_user = bernd, but then my colleague charles needs his own copy of this config file. I thought I could use exim_user = $caller_uid, but exim complains: seeking password data for user "$caller_uid": cache not available getpwnam() returned NULL (user not found) What to do? Here is my complete config file so far. I'm using exim 4.67 from Ubuntu/Gutsy. This actually does what I want it to, except the config isn't portable: never_users = root host_lookup = !* rfc1413_hosts = * rfc1413_query_timeout = 0s ignore_bounce_errors_after = 8h helo_accept_junk_hosts = * smtp_accept_max = 200 smtp_accept_queue_per_connection = 25 log_selector = +sender_on_delivery +smtp_confirmation message_size_limit = 32M preserve_message_logs = false exim_user = bernd exim_group = bernd log_file_path = @localstatedir@/log/exim_%s # for make-time substitution spool_directory = /tmp/ daemon_smtp_port = 7357 acl_smtp_rcpt = acl_check_rcpt begin acl acl_check_rcpt: accept begin routers feedback: driver = accept transport = feedback no_more begin transports feedback: driver = pipe command = sh -c "cat >>/tmp/feedback" # to be elaborated later with perl, diff, etc. begin retry * * F,2h,15m; G,16h,1h,1.5; F,4d,6h -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
