--- /dev/null
+[[!meta title="Why do my mail scripts not generate bounces?"]]
+The scripts server interprets procmail failures as temporary
+failures, queueing the mail until the procmailrc is fixed. This is
+useful if your procmailrc is unreadable or broken, but it can make
+debugging difficult. If you want to explicitly bounce a message,
+you can use a stanza similar to this in your procmailrc file:
+
+ :0:
+ * ^Delivered-To:.*USER_NAME\+TAG@.*
+ {
+ EXITCODE=67
+ HOST
+ }
+
+The list of recognized exit codes can be found in the
+[sysexits(3) manpage](http://www.gsp.com/cgi-bin/man.cgi?section=3&topic=sysexits).
+
+
+