ASSP 1.3.1

ASSP is the best SPAM fighting weapon that the world has ever known! When it comes to killing SPAM nothing is as deadly as an ASSP!
Main features:
- Easy browser-based setup (optional).
- Uses your existing message transport and existing SMTP server.
- Works with Sendmail, qmail, Postfix, Imail, Exchange, Courier, Mercury, Lotus Notes, and all other standard SMTP servers.
- Runs on Linux, Unix, Windows, OS X, OS/2, and more.
- Automatically customizes to your sites unique email profile.
- Automatic whitelist -- noone you email will ever be blocked.
- Early Sender validation -- Kills most spam before it ever reaches the server.
- Senders receive immediate notification if mail is blocked but no erroneous bounces are ever generated.
- Redlist keeps an address off the whitelist.
- No-processing addresses pass through.
- Makes use of honeypot type spambucket addresses to automatically recognize spam and update your spam database.
- Bayesian filter intelligently classifies email into spam and non-spam.
- Supports additional site-defined regular expressions to identify spam or non-spam email.
- Can optionally block all non-whitelisted email (for anti-spam zelots).
- Mime encoded and other camouflaged spam is also recognized.
- Automatically maintains the spam and non-spam databases.
- Accepts whitelist submissions and spam error reports by authorized email.
- Optionally rejects executable attachments from non-whitelisted (or all) addresses.
- Free (as in speech) software -- Licensed under the GPL.
- Practically no maintenance required.
- Active user community and email list for support questions.
- Source code included if you need to customize your installation.
- Runs as a service in Windows NT / 2000.
- Optionally blocks no mail but adds an email header and/or updates the message subject.
- Optionally uses community-based spam statistics to identify hosts that are likely to send spam or non-spam mail.
- In *nix environments can switch to non-root user. Also supports chroot jail.
- Individual users can be configured to receive all mail.
- Shows detailed analysis of spam rating process for specific messages.
- Option to forward a copy of every rejected mail to an address.
- Can block spam-bombs (when spammers forge your domain in the from field).
- Keeps spam statistics for your site.
- Detailed documentation.
- Can listen on more than one smtp port.