reinstate the default plugins config (from revision 1.9)

git-svn-id: https://svn.perl.org/qpsmtpd/trunk@193 958fd67b-6ff1-0310-b445-bb7760255be9

config.sample/plugins

@@ -6,9 +6,42 @@
 # plugins/http_config for details.
 #   http_config http://localhost/~smtpd/config/  http://www.example.com/smtp.pl?config=
 
+quit_fortune
+
+check_earlytalker
+count_unrecognized_commands 4
+
+require_resolvable_fromhost
+
+rhsbl
+dnsbl
+check_badmailfrom
+check_badrcptto
+check_spamhelo
+
+# sender_permitted_from
+
 # this plugin needs to run after all other "rcpt" plugins
 check_relay
 
+# content filters
+klez_filter
+
+
+# You can run the spamassassin plugin with options.  See perldoc
+# plugins/spamassassin for details. 
+#
+spamassassin
+
+# rejects mails with a SA score higher than 20 and munges the subject
+# of the score is higher than 10.  
+#
+#   spamassassin reject_threshold 20 munge_subject_threshold 10
+
+
+# run the clamav virus checking plugin
+# clamav
+
 # queue the mail with qmail-queue
 queue/qmail-queue