Anti spam with web interface/daily user reports
I'm currently working on setting up a mailserver on Red Hat 5, with Postfix, Dovecot IMAP, Squirrelmail and Active Directory authentication.
I was planning to use MailScanner (SpamAssassin + ClamAV package) as the spam/antivirus solution.
But my boss requires me to find a solution that would allow the spams to be managed directly by the users, when they log on a web interface. They should also receive a daily report by mail showing what have been quarantined.
For the moment, I found a big amount of softwares/appliances but they are not free: Barracuda, Spamfilter, Mailcleaner.
I found Dspam and Anti-Spam SMTP Proxy Server (ASSP) which are free, but I'm not sure they comes with all the features I need.
Anyone knows a good antispam which can match this requirements? Thanks !