It's caused by incorrect URL handle (missing '/'), here's patch for iRedAdmin-Pro-LDAP-2.1.1, iRedAdmin-Pro-MySQL-1.8.1, iRedAdmin-Pro-PGSQL-1.4.1:
diff -r 3662702e448d controllers/amavisd/urls.py
--- a/controllers/amavisd/urls.py Tue Jan 21 11:25:01 2014 +0800
+++ b/controllers/amavisd/urls.py Wed Jan 22 18:05:15 2014 +0800
@@ -21,7 +21,7 @@
'/activities/quarantined', 'controllers.amavisd.log.QuarantinedMails',
'/activities/quarantined/page/(\d+)', 'controllers.amavisd.log.QuarantinedMails',
'/activities/quarantined/(spam|virus|banned)', 'controllers.amavisd.log.QuarantinedMails',
- '/activities/quarantined/(spam|virus|banned)/page(\d+)', 'controllers.amavisd.log.QuarantinedMails',
+ '/activities/quarantined/(spam|virus|banned)/page/(\d+)', 'controllers.amavisd.log.QuarantinedMails',
# Per-user quarantined mails
'/activities/quarantined/(user)/(%s)' % regx_email, 'controllers.amavisd.log.QuarantinedMailsPerAccount',
'/activities/quarantined/(user)/(%s)/page/(\d+)' % regx_email, 'controllers.amavisd.log.QuarantinedMailsPerAccount',