etc/exim4/conf.d/router/700_exim4-config_procmail

   1
   2 procmail:
   3   debug_print = "R: procmail for $local_part@$domain"
   4   driver = accept
   5   domains = +local_domains
   6   check_local_user
   7   transport = procmail_pipe
   8   # emulate OR with "if exists"-expansion
   9   require_files = ${local_part}:\
  10                   ${if exists{/etc/procmailrc}\
  11                     {/etc/procmailrc}{${home}/.procmailrc}}:\
  12                   +/usr/bin/procmail
  13   no_verify
  14   no_expn
  15