Our AntiSpam solution works by routing all incoming e-mail to your domain through our AntiSpam servers.  There, all e-mail is scored with a number representing the likelihood that the message is spam.  (Click here to learn more about how messages are scored).   Spam is then checked against your individual settings.  If the message scores within the range you consider spam, it then goes through the process you have chosen:  It is either kept on the server, tagged as spam, or added to the digest list of spam messages that are sent out to users once per day.

In order to get the messages for your domain, a change will be made to your DNS (change the .MX records to point to our servers) .  We will work with your e-mail and/or web hosting provider to get the change made.  After the change propagates through the Internet (usually 24-48 hours), mail will begin to filter through our servers and be scanned for spam.

To ensure ultimate in reliability, we have redundant (backup) mail servers in multiple locations across the US.  We also have backup servers for our backup servers. 

Here is a simple diagram of how the service works: