Tag Archives: Content Filtering

5 Ways to Keep Your Marketing Emails away from Spam Filters

Like most companies, you probably put a lot of work and thought into your marketing emails. You carefully compile a list of interested customers, choose the perfect design, write amazing content, come up with hard to resist offers, and send it …

5 Ways to Keep Your Marketing Emails away from Spam Filters
   

Blekko Identifies Over a Million Domains as Spam

In what appears to be a hot and nasty brawl brewing between David and Goliath, a tale of two search engines is getting significant press about respective plans to fight spam by removing spam-laden sites from search results. It has …

Blekko Identifies Over a Million Domains as Spam
   

What are Bayesian filters anyway?

Have you ever wondered just what a Bayesian filter actually is? If so, this post is for you.

What are Bayesian filters anyway?
   

Understanding Exchange 2010 Content Filtering

One of the anti-spam technologies built into Exchange 2010 is called Content Filtering. Enabled by default on the Edge Transport server and scanning all inbound emails, the Content Filtering analyzes inbound mail to see whether or not it is likely …

Understanding Exchange 2010 Content Filtering
   

Understanding the Spam Confidence Level in Exchange Server

If you have looked at Exchange Server’s anti-spam features or taken a peek at the headers of an email sent through an Exchange server you have probably encountered the term SCL before. SCL stands for Spam Confidence Level.  It is …

Understanding the Spam Confidence Level in Exchange Server
   

Anti-Spam is Not One Size Fits All

Anti-spam technology encompasses a lot of different practices, techniques, and systems for detecting and blocking spam emails.  Customers sometimes look for a turnkey, push button, set and forget anti-spam solution that will “just work”. The reality is that not all …

Anti-Spam is Not One Size Fits All
   

How to Prevent Postmaster Spam

When I meet a new customer to discuss their spam problems I often hear of the same complaint. “We are getting spam from postmaster addresses and we don’t know why.” This complaint has a multitude of variations but we tend …

How to Prevent Postmaster Spam
   

ISPs Don’t Want to be Spam Cops

British ISPs have reacted strongly to the suggestion of Trend Micro CTO David Rand that the ISPs should actively combat the problem of spam on the internet. Rand’s suggestion is the blocking of TCP port 25 (the port used for …

ISPs Don’t Want to be Spam Cops
   

Two Heads Fight Spam Better Than One

Independent security organization Virus Bulletin has called for makers of email security products to collaborate in the fight against spam. Virus Bulletin conducted a test of 14 anti-spam products using 200,000 emails made up of both spam and legitimate content.  …

Two Heads Fight Spam Better Than One
   

7 Major Sources of Spam on the Internet

Anyone who uses the internet whether for business or for leisure has had first hand experience with spam at some point in time.  Spam is a problem that plagues the internet and affects us all in some way.  Like most …

7 Major Sources of Spam on the Internet