Spam Blocker

Block Spam at the Network Gateway

Untangle's Free Spam Blocker uses advanced spam filtering to block spam at the gateway before it ever reaches the users.  Zero client installations and an intuitive GUI make it easy for administrators to: 

• Leverage the best spam filtering techniques including Bayesian Filters, Razor, realtime block lists (RBLs), OCR for image spam and tarpitting
  

• Provide individual quarantines for each mailbox
  

• Filter SMTP, POP & IMAP
  

Screenshots (click to go to gallery)	Video: Spam Blocker Overview (5 minutes)

“Right away, spam was down 95%” Brian Welker , Sunridge Properties

Spam is the bane of small businesses’ existence. It can not only bring viruses onto your network, but it can take over your computers and send spam to other computers.

And it impacts you in other ways. According to a recent study, the cost of spam messages to U.S. companies—in terms of productivity and the equipment, software and manpower to combat it—was upwards of $10 billion in 2004.

So the key is to stop spam before it stops you.

Our powerful Spam Blocker protects you with top-notch spam scanning and blocking at the edge of your network—before it can do damage or slow you down. Using the latest technologies, Spam Blocker transparently scans for spam, marks messages and intercepts emails. It requires no alteration of your network’s mail configuration and is constantly updated to guard against any refinements in trickery or techniques that senders create to get around other solutions.

Key Features:

• Open Source & Free Under the GNU General Public License (GPL)
  
• Quarantine Digest—our Spam Blocker is optimized to make sure “good” mail is never mistaken for spam. However, if a “good” mail is ever identified as spam, Untangle Spam Blocker gives each team member in your company their own personal “quarantine” list. They can find that email without having to track down an administrator
• Personal Passlist—users can designate certain email addresses as “good” without having to bother your IT person
• Image based filtering — scans images within emails to stop this new type of spam
• POP, IMAP & SMTP support
  
• Reports give a comprehensive view of the spam environment on your network, including  the source of the spam and how much spam is received in aggregate and by user