diff --git a/src/configure.default b/src/configure.default
index 8b599d2..37a6a00 100644
--- a/src/configure.default
+++ b/src/configure.default
@@ -692,6 +692,12 @@ userforward:
   pipe_transport = address_pipe
   reply_transport = address_reply
 
+procmail:
+  driver = accept
+  check_local_user
+  require_files = ${local_part}:+${home}/.procmailrc:/usr/bin/procmail
+  transport = procmail
+  no_verify
 
 # This router matches local user mailboxes. If the router fails, the error
 # message is "Unknown user".
@@ -729,6 +735,16 @@ begin transports
 remote_smtp:
   driver = smtp
 
+# This transport invokes procmail to deliver mail
+procmail:
+  driver = pipe
+  command = "/usr/bin/procmail -d $local_part"
+  return_path_add
+  delivery_date_add
+  envelope_to_add
+  user = $local_part
+  initgroups
+  return_output
 
 # This transport is used for local delivery to user mailboxes in traditional
 # BSD mailbox format. By default it will be run under the uid and gid of the