etc/exim4/conf.d/transport/30_exim4-config_procmail_pipe

   1
   2 procmail_pipe:
   3   debug_print = "T: procmail_pipe for $local_part@$domain"
   4   driver = pipe
   5   path = "/bin:/usr/bin:/usr/local/bin"
   6   command = "/usr/bin/procmail"
   7   return_path_add
   8   delivery_date_add
   9   envelope_to_add
  10