The Zero Maintenance Spam Filter Solution

Edge Internet offers zero maintenance managed dedicated spam filter gateway mail servers.  The primary anti-spam technology we use is "grey listing."  We also optionally implement Real time Block Lists of known spammer IP addresses, and optionally "no listing" as another layer of filtering.  Grey listing is zero maintenance because it is simple and automated.

Grey listing works by accepting mail only from RFC compliant mail servers.  The large majority of spammers do not use RFC compliant mail servers as their profit would be lower if they did.  Legitimate senders do use RFC compliant mail servers.  High value spam is sometimes sent using RFC compliant mail servers which is not blocked by grey listing. This explains the approximately 10 percent of spam that makes it past our filters.  Your email programs' junk mail filter should catch 8 out of the 10 percent of high value spam messages, as it uses a content based spam filter, leaving only 1 or 2 messages a day on average for the user to manually delete out of their inbox.

Although your email program's content based junk mail filter may be doing an excellent job of identifying most of your spam, periodically checking over the spam identified messages to look for "false positives" (legitimate messages falsely identified as spam) before deleting the spam messages is time consuming, distracting, and frustrating.  Lost time, distractions, and frustration lower employee productivity.  Our filters reduce that lost productivity.

Our spam filter servers act solely in the role of incoming email filter (incoming email gateway,) running on top quality hardware and Red Hat Enterprise Linux.  Our servers route the filtered messages to any type of Internet mail server.

(The percentages of blocked and caught spam described on this web site are approximations.)
 

"My daily spam has been reduced from about 135 messages to about 8."  -
Ron  Morell
Cableinc.com

"Spam has been virtually eliminated."  -
Richard Kelly
Orgs.biz

"Now, I have almost no spam - entire weeks can pass and I don't see any."  -
Tom Politeo
Politeo.net